fix: locale format and translation updates

New Crowdin updates

.github/workflows/release.yml

@@ -345,6 +345,8 @@ jobs:
             CHANGELOG="See CHANGELOG.md for details."
           else
             echo "Found changelog content"
+            # Remove trailing --- separator if present (CHANGELOG uses --- between versions)
+            CHANGELOG=$(echo "$CHANGELOG" | sed '/^---$/d')
           fi
 
           # Save to file for multiline support

.gitignore

@@ -6,6 +6,8 @@ Thumbs.db
 .idea/
 .vscode/
 *.iml
+.cursorignore
+.cursorrules
 
 # Kiro specs (development only)
 .kiro/
@@ -53,3 +55,20 @@ ios/.symlinks/
 ios/Flutter/Flutter.framework/
 ios/Flutter/Flutter.podspec
 android/app/libs/gobackend-sources.jar
+
+# Extension folder
+extension/
+
+# Agent instructions
+AGENTS.md
+
+# Temp/misc
+nul
+
+# Log files
+*.log
+hs_err_*.log
+flutter_*.log
+
+# Development tools
+tool/

CHANGELOG.md

@@ -1,10 +1,466 @@
 # Changelog
 
-## [3.0.0-alpha.4] - Upcoming
+## [3.1.1] - 2026-01-17
+
+### Added
+
+- **Lyrics Caching**: Lyrics are now cached for 24 hours to reduce API calls and improve performance
+  - Thread-safe cache with automatic expiration
+  - Cache key based on artist, track, and duration
+  - Log indicator shows "(cached)" when lyrics are served from cache
+
+- **Lyrics Duration Matching**: Improved lyrics accuracy with duration-based matching
+  - Compares track duration with lrclib.net results
+  - 10-second tolerance to handle version differences (radio edit, remaster, etc.)
+  - Prioritizes synced lyrics over plain text when duration matches
+  - Falls back gracefully if no duration match found
+
+- **Deezer Cover Art Upgrade**: Cover art from Deezer CDN now automatically upgraded to maximum quality
+  - Detects Deezer CDN URLs (`cdn-images.dzcdn.net`)
+  - Upgrades cover resolution to 1800x1800 (max available)
+  - Works alongside existing cover upgrade
+
+- **Live Search for Extensions**: Search-as-you-type functionality for extension search
+  - 800ms debounce delay to prevent excessive API calls
+  - Minimum 3 characters required before searching
+  - Concurrency control to prevent race conditions in extension runtime
+  - Queues pending searches if a search is already in progress
+
+- **Russian Language Support**: Added Russian (Русский) translation - 99% complete
+  - Translated via Crowdin community contributions
+  - Covers all UI elements, settings, and error messages
+
+### Fixed
+
+- **ISRC Index Race Condition**: Fixed repeated index rebuilding during parallel downloads
+  - Added per-directory build lock using `sync.Map` and `sync.Mutex`
+  - Double-check locking pattern ensures index is built only once
+  - Significantly improves performance during CSV import with many tracks
+
+- **Queue Tab Scroll Exception**: Fixed Flutter rendering exception with NestedScrollView
+  - Disabled Material 3 stretch overscroll indicator that caused `_StretchController` assertion
+  - Wrapped NestedScrollView with ScrollConfiguration to prevent `setState during build` errors
+  - Issue was especially noticeable during rapid queue updates (CSV import)
+
+- **CSV Import**: Fixed CSV export not being parsed correctly
+  - Added support for `Artist Name(s)` header (with parentheses)
+  - Added support for `Track URI` header for track IDs
+  - Added `artists` and `track_id` as alternative header names
+  - Now correctly parses "Liked Songs" and playlist exports
+
+---
+
+## [3.1.0] - 2026-01-16
+
+### Added
+
+- **Recent Access History**: Quick access to recently visited content when tapping the search bar
+  - Shows recently visited artists, albums, playlists, and downloaded tracks
+  - Merged view combining navigation history and download history
+  - Tap to quickly navigate back to previously accessed content
+  - X button to remove individual items from history
+  - "Clear All" button to clear entire history
+  - Persists across app restarts (stored in SharedPreferences)
+  - Max 20 items stored, sorted by most recent
+  - Multi-language support (Artist/Album/Song/Playlist labels localized)
+
+- **Artist Screen Redesign**
+  - Full-width header image (380px) with gradient overlay
+  - Artist name displayed at bottom of header with text shadow
+  - Monthly listeners count display (formatted with compact notation)
+  - "Popular" section showing top 5 tracks with download status indicators
+  - Dynamic download button states (queued, downloading, completed)
+  - Header image and top tracks fetched from extension metadata
+  - Image alignment set to top-center to show faces properly
+
+- **Extension Store Update Badge**: Badge indicator on Store tab icon showing number of available updates
+  - Users can see extension updates are available without opening Store tab
+  - Badge shows count of extensions with updates
+
+- **Extension Compatibility Warning**: Warning badge for extensions requiring newer app version
+  - Extensions with `minAppVersion` higher than current app show warning label
+  - Label displays "Requires vX.X.X+" to encourage users to upgrade
+  - Users can still install the extension (not blocked)
+
+- **Year in Album Folder Name** ([#50](https://github.com/zarzet/SpotiFLAC-Mobile/issues/50)): New album folder structure options with release year
+
+  - `Artist / [Year] Album`: Albums/Coldplay/[2005] X&Y/
+  - `[Year] Album Only`: Albums/[2005] X&Y/
+  - Year extracted from release date metadata
+  - Matches desktop SpotiFLAC folder structure
+
+- **Extension Album/Playlist/Artist Support**: Extensions can now return albums, playlists, and artists in search results
+
+  - Search results now properly separated into Albums, Playlists, Artists, and Songs sections
+  - Albums, playlists, and artists show chevron icon (navigate to detail) instead of download button
+  - Tap album/playlist to view track list and download
+  - Tap artist to view their albums/discography
+  - New `getAlbum()`, `getPlaylist()`, and `getArtist()` extension functions
+  - New `ExtensionAlbumScreen`, `ExtensionPlaylistScreen`, and `ExtensionArtistScreen` for fetching content from extensions
+  - YouTube Music extension updated with album/playlist/artist support
+
+- **Odesli (song.link) Integration for YouTube Music Extension**
+  - New `enrichTrack()` function to fetch ISRC and external service links
+  - Uses Odesli API to convert YouTube Music tracks to Deezer/Tidal/Qobuz
+  - Enables built-in service fallback for high-quality audio downloads
+  - Extension version updated to 1.4.0 with `api.song.link` and `odesli.io` network permissions
+- **Download Cancel**: Canceling a download now stops in-flight built-in provider downloads (Tidal/Qobuz/Amazon) and clears backend progress tracking.
+
+### Changed
+
+- **Search Bar Behavior**: Tapping search bar now immediately moves it to top position
+  - Logo and subtitle hide when search bar is focused
+  - Recent access history appears in the content area below
+  - More space for recent items, not blocked by keyboard
+
+### Fixed
+
+- Fixed search source chips still referencing removed badge props.
+- Fixed extension artist album metadata to preserve provider IDs and cover URLs for correct navigation.
+- Fixed extension playlist fetch to populate provider IDs and reject disabled extensions.
+- Fixed extension collection screens calling setState after dispose during async loads.
+- Fixed URL handler responses to include provider IDs for extension albums and artists.
+- Fixed YTMusic extension not extracting album name and duration from search results.
+  - Album name is now extracted from flexColumns/subtitle when linked to album browseId.
+  - Duration is now extracted from fixedColumns/flexColumns in addition to existing sources.
+- Fixed "Separate Singles" setting not working ([#54](https://github.com/zarzet/SpotiFLAC-Mobile/issues/54)) - singles were going to Albums folder.
+  - Root cause: `albumType` was not being extracted from Deezer API during metadata enrichment.
+  - Deezer track responses now correctly include `album_type` (single/ep/album/compilation).
+  - Track creation now preserves `albumType` and `source` fields throughout download flow.
+- Fixed PageView overscroll at edges (BouncingScrollPhysics → ClampingScrollPhysics)
+- Fixed settings item highlight on swipe (highlightColor: Colors.transparent)
+- Fixed extension duplicate load error (skip silently instead of throwing error)
+- Fixed keyboard appearing when swiping between tabs (unfocus on page change)
+- Removed "Free"/"API Key" badges from search source selector
+- Fixed cancel action briefly resuming downloads in the queue UI after ~1 second.
+- Fixed cancelled downloads being marked as failed when the backend returns after cancellation.
+- Fixed cancel triggering provider fallback (cancel now stops the download flow immediately).
+- Fixed stale ISRC cache returning deleted files after cancel.
+- Fixed search results mixing extension and built-in artists when using default provider.
+- Fixed audio files opening with non-music apps by passing audio MIME type on open.
+- Fixed album artist showing null/blank by normalizing empty metadata and using artist fallback for tags.
+- Fixed `use_build_context_synchronously` lint warnings in `home_tab.dart`
+- Fixed `unnecessary_underscores` lint warnings in error widget callbacks
+- Fixed duplicate artist entries in recent history (recording now only happens in screen's initState)
+- **Go Backend: Missing `item_type` and `album_type` fields**
+  - Added `ItemType` and `AlbumType` fields to `ExtTrackMetadata` struct
+  - Fixed `CustomSearchWithExtensionJSON` - now includes `item_type` and `album_type` in response
+  - Fixed `HandleURLWithExtensionJSON` - now includes `item_type` and `album_type` for tracks
+  - Fixed `GetAlbumWithExtensionJSON` - now includes `item_type` and `album_type` for album tracks
+  - Fixed `GetPlaylistWithExtensionJSON` - now includes `item_type` and `album_type` for playlist tracks
+- **Album/Playlist Track Thumbnails**: Tracks inside albums/playlists now use album/playlist cover as fallback when no individual cover exists
+- **YouTube Music Extension getArtist**: Fixed `getArtist()` function not being registered in extension, causing artist pages to fail with "returned null" error
+- **Recent Access UI**: Fixed recent access list disappearing when keyboard is dismissed - now stays visible until user presses Back button
+- **Extension Artist Top Tracks**: Fixed top tracks not appearing when opening artist from extension search results
+  - YT Music extension `getArtist()` now returns `top_tracks` array with up to 10 popular songs
+  - Go backend `GetArtistWithExtensionJSON` now forwards `top_tracks`, `header_image`, and `listeners` to Flutter
+  - `ExtensionArtistScreen` now parses and passes top tracks to `ArtistScreen`
+  - `ArtistScreen` with `extensionId` skips metadata fetch, uses extension data only (fixes "Rate Limited" errors)
+- **Search Bar Unfocus**: Fixed search bar not unfocusing when tapping outside - now properly dismisses keyboard and unfocus when tapping anywhere outside the search field
+- **Keyboard Appearing on Settings Navigation**: Fixed keyboard randomly appearing when returning from Settings sub-pages (e.g., Appearance) - now uses `FocusManager.instance.primaryFocus?.unfocus()` for more aggressive unfocus
+- **Recent Access Artist Navigation**: Fixed opening artist from recent access using wrong screen - now correctly uses `ExtensionArtistScreen` for extension artists (YT Music, etc.) instead of trying to fetch from API
+
+### Extensions
+
+- **YouTube Music Extension**: Updated to v1.5.0
+  - `getArtist()` now returns `top_tracks` array with popular songs
+  - Added `header_image` and `listeners` to artist response
+- **Web Extension**: Updated to v1.6.0
+
+### Localization
+
+- **Multi-Language Support**: App now supports multiple languages with community contributions via Crowdin
+  - Available languages: English, Indonesian (Bahasa Indonesia)
+  - More languages coming soon with community translations
+  - Contribute translations at [Crowdin](https://crowdin.com/project/spotiflac-mobile)
+- Added new localization strings for recent access types:
+  - `recentTypeArtist` - "Artist" / "Artis"
+  - `recentTypeAlbum` - "Album" / "Album"
+  - `recentTypeSong` - "Song" / "Lagu"
+  - `recentTypePlaylist` - "Playlist" / "Playlist"
+  - `recentPlaylistInfo` - "Playlist: {name}"
+  - `errorGeneric` - "Error: {message}"
+
+---
+
+## [3.0.0] - 2026-01-14
+
+### Extension System (Major Feature)
+
+SpotiFLAC 3.0 introduces a powerful extension system that allows third-party integrations for metadata, downloads, and more.
+
+#### Extension Store
+
+- Browse and install extensions directly from the app
+- New "Store" tab in bottom navigation
+- Browse by category: Metadata, Download, Utility, Lyrics, Integration
+- Search extensions by name, description, or tags
+- One-tap install, update, and uninstall
+- Offline cache for browsing without internet
+
+#### Web Extension
+
+- Available in Extension Store - install and enable in Settings > Extensions
+- Metadata provider using web player API
+- Download tracks from Daily Mix, Discover Weekly, and other personalized playlists
+- Useful when official API is rate-limited or unavailable
+
+#### Extension Capabilities
+
+- **Custom Search Providers**
+- **Custom URL Handlers**
+- **Custom Thumbnail Ratios**: Square (1:1), Wide (16:9), Portrait (2:3)
+- **Post-Processing Hooks**: Extensions can process downloaded files
+- **Quality Options**: Extensions can define custom quality settings
+
+#### Extension APIs
+
+- Full HTTP support: GET, POST, PUT, DELETE, PATCH
+- Persistent cookie jar per extension
+- Browser-like polyfills: `fetch()`, `atob()`/`btoa()`, `TextEncoder`/`TextDecoder`, `URL`/`URLSearchParams`
+- Storage API for persistent data
+- File API for file operations
+- HMAC-SHA1 utility for cryptographic operations
+
+#### Security
+
+- Sandboxed JavaScript runtime (goja)
+- Permission-based access control
+- Network domain whitelisting
+- Improved credential encryption with per-installation random salt
+
+### Added
+
+- **Album Folder Structure Setting**: Option to remove artist folder from album path
+
+  - `Artist / Album` (default): `Albums/Artist Name/Album Name/`
+  - `Album Only`: `Albums/Album Name/`
+
+- **Separate Singles Folder**: Organize downloads into Albums/ and Singles/ folders
+
+  - Based on `album_type` from metadata
+  - Toggle in Settings > Download > Separate Singles Folder
+
+- **Year in Album Folder Name**: New album folder structure options with release year
+
+  - `Artist / [Year] Album`: Albums/Coldplay/[2005] X&Y/
+  - `[Year] Album Only`: Albums/[2005] X&Y/
+  - Year extracted from release date metadata
+  - Matches desktop SpotiFLAC folder structure
+
+- **Parallel API Calls**: Download URL fetching now uses parallel requests
+  - Tidal: All 8 APIs requested simultaneously, first success wins
+  - Qobuz: Both APIs requested simultaneously, first success wins
+  - Significantly reduces download URL fetch time
+
+### UI/UX Improvements
+
+- **Swipeable History Filters**: History tab now supports swipe gestures between All, Albums, and Singles filters
+
+  - Swipe left/right to switch between filter tabs
+  - Filter chips sync with swipe position
+  - Smooth edge-to-edge transition: swipe past Singles to go to Store, swipe past All to go to Home
+  - Natural gesture feel - drag connects to parent navigation
+
+  - **Improved File Open Intent**: Play button in History now correctly opens music players only
+  - Added proper MIME type (`audio/flac`, `audio/mpeg`, etc.) when opening downloaded files
+  - Prevents system from showing unrelated apps in the "Open with" dialog
+
+### Fixed
+
+- **Fixed Tab Edge Overscroll**: Home and Settings tabs now stop at edges instead of bouncing into empty space
+
+- **Fixed Extension Duplicate Load Error**: Extension loading now silently skips already-loaded extensions instead of throwing error
+
+- **Fixed Settings Item Highlight on Swipe**: Settings items no longer highlight when swiping at page edge
+
+- **Fixed Keyboard Appearing on Tab Switch**: Keyboard now auto-dismisses when swiping between tabs
+
+- **Removed Search Source Badges**: Removed "Free" and "API Key" labels from provider selector in Options
+
+- **Back Gesture Freeze on Android 13+**: Fixed app freeze when using back gesture in settings
+
+  - Added `PopScope` with `canPop: true` to all settings pages
+  - Changed navigation to use `PageRouteBuilder` with proper slide transition
+
+- **Bottom Overflow in Folder Organization Dialog**: Fixed overflow in portrait and landscape mode
+
+  - Made dialog scrollable with max height constraint
+
+- **Japanese Artist Name Order**: Fixed artist mismatch for Japanese names
+
+  - "Sawano Hiroyuki" vs "Hiroyuki Sawano" now correctly matches
+
+- **Multi-Artist Matching**: Fixed artist mismatch for collaboration tracks
+
+  - "RADWIMPS feat. Toko Miura" now matches when service only shows "Toko Miura"
+
+- **Max Resolution Cover Download**: Fixed cover not upgrading to max resolution on mobile
+
+  - Mobile now correctly upgrades 300x300 → 640x640 → max resolution (~2000x2000)
+
+- **EXISTS: Prefix in File Path**: Fixed "File not found" error in metadata screen
+
+  - Duplicate detection prefix now stripped before saving to history
+
+- **Extension Search Result Parsing**: Fixed "cannot unmarshal array" error
+
+  - Go backend now handles both array and object formats from extensions
+
+- **Store Tab Unmount Crash**: Fixed "Using ref when widget is unmounted" error
+
+- **Duplicate History Entries**: Fixed duplicate entries when re-downloading same track
+
+  - Detects existing entries by track ID, Deezer ID, or ISRC
+
+- **Permission Error Message**: Fixed download showing "Song not found" when actually permission error
+
+  - Now shows proper message: "Cannot write to folder, check storage permission"
+
+- **Android 13+ Storage Permission**: Fixed storage permission not working on Android 13+
+  - Now requests both `MANAGE_EXTERNAL_STORAGE` and `READ_MEDIA_AUDIO`
+
+### Changed
+
+- **Extension Manifest**: New `file` permission required for file operations
+  ```json
+  "permissions": {
+    "network": ["api.example.com"],
+    "storage": true,
+    "file": true
+  }
+  ```
+
+### Technical
+
+- Go backend: Simplified parallel download result handling in Tidal/Qobuz
+- Go backend: Removed unused functions and fixed bit shifting warnings
+- Release workflow: Fixed duplicate `---` separator in release notes
+
+---
+
+## [3.0.0-beta.2] - 2026-01-13
+
+### Added
+
+- **Album Folder Structure Setting**: Option to remove artist folder from album path
+  - New setting in Download Settings when "Separate Singles Folder" is enabled
+  - `Artist / Album` (default): `Albums/Artist Name/Album Name/`
+  - `Album Only`: `Albums/Album Name/`
+  - Requested by user who prefers flat album organization
+
+### Fixed
+
+- **Back Gesture Freeze on OnePlus/Android 13+**: Fixed app freeze when using back gesture in settings
+
+  - Added `PopScope` with `canPop: true` to all settings pages
+  - Changed navigation to use `PageRouteBuilder` with proper slide transition
+  - Fixes predictive back gesture conflict on devices with gesture navigation
+  - Affected pages: Download, Appearance, Options, Extensions, About, Logs, Extension Detail
+
+- **Extension Search Result Parsing**: Fixed "cannot unmarshal array into Go value" error
+
+  - Go backend now handles both array and object formats from extensions
+  - Extensions returning `[{track}, {track}]` now work correctly
+  - Extensions returning `{tracks: [...], total: N}` still work as before
+
+- **Max Resolution Cover Download**: Fixed cover not upgrading to max resolution on mobile
+
+  - Added missing `spotifySize300` constant (300x300 size code)
+  - Mobile now correctly upgrades 300x300 → 640x640 → max resolution (~2000x2000)
+  - Added `_upgradeToMaxQualityCover()` helper in Flutter for M4A conversion path
+  - Go backend `cover.go` now directly replaces URL without HEAD verification
+
+- **Extension Search Provider Reset**: Fixed search provider not resetting to default when disabled
+
+  - `copyWith` in `AppSettings` couldn't set `searchProvider` to `null`
+  - Added `clearSearchProvider` boolean parameter to properly clear the value
+  - Settings menu now correctly switches back to default provider
+
+- **Extension Disabled Search Fallback**: Fixed error when extension is disabled but still called
+
+  - `_performSearch` now checks if extension is still enabled before calling custom search
+  - Automatically falls back to Deezer search if extension was disabled
+  - Clears `searchProvider` setting if extension no longer available
+
+- **Store Tab Unmount Crash**: Fixed "Using ref when widget is unmounted" error
+
+  - Added `mounted` check after async operation in `_initialize()`
+  - Prevents crash when navigating away from Store tab during initialization
+
+- **EXISTS: Prefix in File Path**: Fixed "File not found" error in metadata screen after download
+
+  - Duplicate detection was adding `EXISTS:` prefix to file paths
+  - Prefix now stripped before saving to download history
+  - Legacy history items with prefix are handled gracefully
+
+- **History Error Badge**: Fixed error badge showing on history items even when file exists
+
+  - `queue_tab.dart` now strips `EXISTS:` prefix before checking file existence
+  - File open and delete operations also use cleaned path
+
+- **Extension Artist URL Handler**: Fixed artist pages showing "0 releases" from extensions
+
+  - Extension `fetchArtist` now returns correct format: `{ type: "artist", artist: { albums } }`
+  - Go backend `HandleURLWithExtensionJSON` now includes albums in artist response
+  - Added `AlbumType` field to `ExtAlbumMetadata` struct
+
+- **Extension Artist Name in Logs**: Fixed empty artist name in extension track logs
+
+  - Now uses `firstArtist` + `otherArtists` instead of deprecated `artists.items`
+  - Logs correctly show "Fetched track: {title} by {artist}"
+
+- **Japanese Artist Name Order**: Fixed artist mismatch for Japanese names with different order
+
+  - "Sawano Hiroyuki" vs "Hiroyuki Sawano" now correctly matches
+  - Added `sameWordsUnordered` check to both Tidal and Qobuz artist matching
+  - Handles Japanese name order (family name first) vs Western name order (given name first)
+
+- **Multi-Artist Matching**: Fixed artist mismatch for collaboration tracks
+
+  - "RADWIMPS feat. Toko Miura" now matches when Qobuz/Tidal only shows "Toko Miura"
+  - Split artists by separators (`, `, `feat.`, `ft.`, `&`, `and`, `x`)
+  - Match if ANY expected artist matches ANY found artist
+
+- **Cover Download Logging**: Improved cover download logs for debugging
+  - Shows original URL, upgrade steps, and final URL
+  - Displays estimated resolution based on file size
+  - Logs now appear in Settings > Logs via GoLog
+
+---
+
+## [3.0.0-beta.1] - 2026-01-13
+
+### Security
+
+- Improved extension sandbox security
+- Improved credential encryption with per-installation random salt
+
+### Changed
+
+- **Extension Manifest**: New `file` permission required for file operations
+  ```json
+  "permissions": {
+    "network": ["api.example.com"],
+    "storage": true,
+    "file": true
+  }
+  ```
+  Extensions that need to download files must declare `"file": true` in manifest.
+
+### Fixed
+
+- Extension packages now preserve directory structure (subdirectories supported)
+- Back gesture freeze in settings pages on Android gesture navigation
+
+---
+
+## [3.0.0-alpha.4] - 2026-01-12
 
 ### Added
 
 - **Extension Store**: Browse and install extensions directly from the app
+
   - New "Store" tab in bottom navigation
   - Browse extensions by category (Metadata, Download, Utility, Lyrics, Integration)
   - Search extensions by name, description, or tags
@@ -13,13 +469,15 @@
   - Extensions hosted at github.com/zarzet/SpotiFLAC-Extension
 
 - **Custom URL Handler for Extensions**: Extensions can now register custom URL patterns
+
   - Handle URLs from YouTube Music, SoundCloud, Bandcamp, etc.
   - Manifest config: `urlHandler: { enabled: true, patterns: ["music.youtube.com"] }`
-  - Implement `handleURL(url)` function in extension to parse and return track metadata
+  - Implement `handleUrl(url)` function in extension to parse and return track metadata
   - SpotiFLAC automatically routes matching URLs to the appropriate extension
   - Supports share intents and paste from clipboard
 
 - **Artist URL Handler Support**: Extensions can now return artist data from URL handlers
+
   - Added `type: "artist"` handling in track_provider.dart
   - Navigate to artist screen with albums list from extension
 
@@ -36,13 +494,13 @@
 
 - Updated `docs/EXTENSION_DEVELOPMENT.md`:
   - Added Custom URL Handler section with examples
-  - Added `handleURL` function documentation
+  - Added `handleUrl` function documentation
   - Added URL pattern examples for YouTube, SoundCloud, Bandcamp
   - Added `utils.hmacSHA1` documentation with TOTP example
 
 ### Extensions
 
-- **Spotify Web Extension** (example): New extension for Spotify metadata via web API
+- **Web Extension** (example): New extension for metadata via web API
   - Supports personalized playlists (Daily Mix, Discover Weekly, Release Radar, etc.)
   - Search, album, playlist, track, and artist fetching
   - Available in Extension Store (3.0.0-alpha.4)
@@ -54,7 +512,7 @@
 ### Added
 
 - **Separate Singles Folder**: Option to organize downloads into Albums/ and Singles/ folders
-  - Based on `album_type` from Spotify/Deezer metadata
+  - Based on `album_type` from metadata
   - Toggle in Settings > Download > Separate Singles Folder
   - Singles saved to `{output}/Singles/`, albums to `{output}/Albums/`
 - **Browser-like Polyfills**: New global APIs for easier library porting
@@ -74,7 +532,7 @@
 ### Fixed
 
 - **Duplicate History Entries**: Fixed duplicate entries when re-downloading same track
-  - Detects existing entries by Spotify ID, Deezer ID, or ISRC
+  - Detects existing entries by track ID, Deezer ID, or ISRC
   - Replaces existing entry and moves to top of list
   - Auto-deduplicates existing history on app load
 - **Extension Search Fallback**: Fixed error when extension is disabled but still called for search
@@ -97,7 +555,7 @@
 
 - **Full HTTP Method Support**: New shortcut methods for all common HTTP verbs
   - `http.put(url, body, headers)` - PUT requests
-  - `http.delete(url, headers)` - DELETE requests  
+  - `http.delete(url, headers)` - DELETE requests
   - `http.patch(url, body, headers)` - PATCH requests
   - `http.clearCookies()` - Clear all cookies for the extension
 - **Persistent Cookie Jar**: Each extension now has its own cookie jar
@@ -139,6 +597,7 @@
 ## [3.0.0-alpha.1] - 2026-01-11
 
 #### Extension System
+
 - **Custom Search Providers**: Extensions can now provide custom search functionality
   - YouTube, SoundCloud, and other platforms via extensions
   - Custom search placeholder text per extension
@@ -217,16 +676,6 @@
 - **Android Changes**:
   - `android/app/src/main/kotlin/com/zarz/spotiflac/MainActivity.kt`: Already had upgrade methods
 
-### Documentation
-
-- Updated `docs/EXTENSION_DEVELOPMENT.md`:
-  - Added thumbnail ratio customization section
-  - Added extension upgrade documentation
-  - Added settings fields table with `secret` field
-  - Added new troubleshooting entries
-  - Updated table of contents
-  - Updated changelog
-
 ---
 
 ## [2.2.8] - 2026-01-12

README.md

@@ -1,11 +1,12 @@
 [![GitHub All Releases](https://img.shields.io/github/downloads/zarzet/SpotiFLAC-Mobile/total?style=for-the-badge)](https://github.com/zarzet/SpotiFLAC-Mobile/releases)
-[![VirusTotal](https://img.shields.io/badge/VirusTotal-Safe-brightgreen?style=for-the-badge&logo=virustotal)](https://www.virustotal.com/gui/file/09c6260e9ebaf2ff0d15f30deda939642f41887f11aad602ac697cb37fa0308c/)
+[![VirusTotal](https://img.shields.io/badge/VirusTotal-Safe-brightgreen?style=for-the-badge&logo=virustotal)](https://www.virustotal.com/gui/file/e1c527eacb6f5ce527af214a75aab8da060c2afc629825fff24af858439e7e6b)
+[![Crowdin](https://img.shields.io/badge/HELP%20TRANSLATE%20ON-CROWDIN-%2321252b?style=for-the-badge&logo=crowdin)](https://crowdin.com/project/spotiflac-mobile)
 
 <div align="center">
 
 <img src="icon.png" width="128" />
 
-Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music — no account required.
+Download music in true lossless FLAC from Tidal, Qobuz & Amazon Music — no account required.
 
 ![Android](https://img.shields.io/badge/Android-7.0%2B-3DDC84?style=for-the-badge&logo=android&logoColor=white)
 ![iOS](https://img.shields.io/badge/iOS-14.0%2B-000000?style=for-the-badge&logo=apple&logoColor=white)
@@ -23,62 +24,60 @@ Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music — no account
   <img src="assets/images/4.jpg?v=2" width="200" />
 </p>
 
-## Metadata Source
+## Search Source
 
-SpotiFLAC supports two metadata sources for searching tracks:
+SpotiFLAC supports multiple search sources for finding music metadata:
 
-| Source | Pros | Cons |
-|--------|------|------|
-| **Deezer** (Default) | No developer account needed, rate limit per user IP | Slightly less comprehensive catalog |
-| **Spotify** | More comprehensive catalog, better search results | Requires developer API credentials to avoid rate limiting |
+| Source | Setup |
+|--------|-------|
+| **Deezer** (Default) | No setup required |
+| **Extensions** | Install additional search providers from the Store |
 
-### Using Spotify
-To use Spotify as your search source without hitting rate limits:
-1. Create a Spotify Developer account at [developer.spotify.com](https://developer.spotify.com)
-2. Create an app to get your Client ID and Client Secret
-3. Go to **Settings > Options > Spotify API > Change from Deezer to Spotify > Input Custom Credentials**
-4. Enter your Client ID and Secret
-5. Change **Search Source** to Spotify
+## Extensions
 
-## Extensions (Alpha)
-
-> **Alpha Feature**: Extensions are now available in alpha. Some features may be unstable or change in future releases.
-
-SpotiFLAC supports extensions to add custom metadata and download providers. Extensions are written in JavaScript and run in a secure sandbox.
-
-### Features
-- **Metadata Providers**: Add new sources for track/album/artist search
-- **Download Providers**: Add new sources for audio downloads
-- **Custom Settings**: Extensions can have user-configurable settings
-- **Provider Priority**: Set the order in which providers are tried
+Extensions allow the community to add new music sources and features without waiting for app updates. When a streaming service API changes or a new source becomes available, extensions can be updated independently.
 
 ### Installing Extensions
-1. Download a `.spotiflac-ext` file
-2. Go to **Settings > Extensions**
-3. Tap **Install Extension** and select the file
+1. Go to **Store** tab in the app
+2. Browse and install extensions with one tap
+3. Or download a `.spotiflac-ext` file and install manually via **Settings > Extensions**
 4. Configure extension settings if needed
 5. Set provider priority in **Settings > Extensions > Provider Priority**
 
 ### Developing Extensions
-Want to create your own extension? Check out the [Extension Development Guide](docs/EXTENSION_DEVELOPMENT.md) for complete documentation.
-
-### Example Extensions
-Sample extensions are available in the [docs/extensions_example](docs/extensions_example) folder:
+Want to create your own extension? Check out the [Extension Development Guide](https://zarz.moe/docs) for complete documentation.
 
 ## Other project
 
 ### [SpotiFLAC (Desktop)](https://github.com/afkarxyz/SpotiFLAC)
-Get Spotify tracks in true FLAC from Tidal, Qobuz & Amazon Music for Windows, macOS & Linux
+Download music in true lossless FLAC from Tidal, Qobuz & Amazon Music for Windows, macOS & Linux
+
+## FAQ
+
+**Q: Why is my download failing with "Song not found"?**  
+A: The track may not be available on Tidal, Qobuz, or Amazon Music. Try enabling more download services in Settings > Download > Provider Priority, or install additional extensions from the Store.
+
+**Q: Why are some tracks downloading in lower quality?**  
+A: Quality depends on what's available from the streaming service. Tidal offers up to 24-bit/192kHz, Qobuz up to 24-bit/192kHz, and Amazon up to 24-bit/48kHz. The app automatically selects the best available quality.
+
+**Q: Can I download playlists?**  
+A: Yes! Just paste the playlist URL in the search bar. The app will fetch all tracks and queue them for download.
+
+**Q: Why do I need to grant storage permission?**  
+A: The app needs permission to save downloaded files to your device. On Android 13+, you may need to grant "All files access" in Settings > Apps > SpotiFLAC > Permissions.
+
+**Q: Is this app safe?**  
+A: Yes, the app is open source and you can verify the code yourself. Each release is scanned with VirusTotal (see badge at top of README).
 
 [![Ko-fi](https://img.shields.io/badge/Ko--fi-Support%20Me-FF5E5B?style=for-the-badge&logo=ko-fi&logoColor=white)](https://ko-fi.com/zarzet)
 
 ## Disclaimer
 
-> **iOS Support**: This app is primarily tested on Android. iOS support is experimental and may have bugs — the developer is too poor to afford an iPhone for proper testing. If you encounter issues on iOS, please report them!
-
 This project is for **educational and private use only**. The developer does not condone or encourage copyright infringement.
 
-**SpotiFLAC** is a third-party tool and is not affiliated with, endorsed by, or connected to Spotify, Tidal, Qobuz, Amazon Music, or any other streaming service.
+**SpotiFLAC** is a third-party tool and is not affiliated with, endorsed by, or connected to Tidal, Qobuz, Amazon Music, Deezer, or any other streaming service.
+
+The application is purely a user interface that facilitates communication between your device and existing third-party services.
 
 You are solely responsible for:
 1. Ensuring your use of this software complies with your local laws.

android/app/src/main/kotlin/com/zarz/spotiflac/MainActivity.kt

@@ -117,6 +117,13 @@ class MainActivity: FlutterActivity() {
                             }
                             result.success(null)
                         }
+                        "cancelDownload" -> {
+                            val itemId = call.argument<String>("item_id") ?: ""
+                            withContext(Dispatchers.IO) {
+                                Gobackend.cancelDownload(itemId)
+                            }
+                            result.success(null)
+                        }
                         "setDownloadDirectory" -> {
                             val path = call.argument<String>("path") ?: ""
                             withContext(Dispatchers.IO) {
@@ -151,8 +158,9 @@ class MainActivity: FlutterActivity() {
                             val spotifyId = call.argument<String>("spotify_id") ?: ""
                             val trackName = call.argument<String>("track_name") ?: ""
                             val artistName = call.argument<String>("artist_name") ?: ""
+                            val durationMs = call.argument<Int>("duration_ms")?.toLong() ?: 0L
                             val response = withContext(Dispatchers.IO) {
-                                Gobackend.fetchLyrics(spotifyId, trackName, artistName)
+                                Gobackend.fetchLyrics(spotifyId, trackName, artistName, durationMs)
                             }
                             result.success(response)
                         }
@@ -161,8 +169,9 @@ class MainActivity: FlutterActivity() {
                             val trackName = call.argument<String>("track_name") ?: ""
                             val artistName = call.argument<String>("artist_name") ?: ""
                             val filePath = call.argument<String>("file_path") ?: ""
+                            val durationMs = call.argument<Int>("duration_ms")?.toLong() ?: 0L
                             val response = withContext(Dispatchers.IO) {
-                                Gobackend.getLyricsLRC(spotifyId, trackName, artistName, filePath)
+                                Gobackend.getLyricsLRC(spotifyId, trackName, artistName, filePath, durationMs)
                             }
                             result.success(response)
                         }
@@ -572,6 +581,30 @@ class MainActivity: FlutterActivity() {
                             }
                             result.success(response)
                         }
+                        "getAlbumWithExtension" -> {
+                            val extensionId = call.argument<String>("extension_id") ?: ""
+                            val albumId = call.argument<String>("album_id") ?: ""
+                            val response = withContext(Dispatchers.IO) {
+                                Gobackend.getAlbumWithExtensionJSON(extensionId, albumId)
+                            }
+                            result.success(response)
+                        }
+                        "getPlaylistWithExtension" -> {
+                            val extensionId = call.argument<String>("extension_id") ?: ""
+                            val playlistId = call.argument<String>("playlist_id") ?: ""
+                            val response = withContext(Dispatchers.IO) {
+                                Gobackend.getPlaylistWithExtensionJSON(extensionId, playlistId)
+                            }
+                            result.success(response)
+                        }
+                        "getArtistWithExtension" -> {
+                            val extensionId = call.argument<String>("extension_id") ?: ""
+                            val artistId = call.argument<String>("artist_id") ?: ""
+                            val response = withContext(Dispatchers.IO) {
+                                Gobackend.getArtistWithExtensionJSON(extensionId, artistId)
+                            }
+                            result.success(response)
+                        }
                         // Extension Post-Processing API
                         "runPostProcessing" -> {
                             val filePath = call.argument<String>("file_path") ?: ""

crowdin.yml

@@ -0,0 +1,19 @@
+files:
+  - source: /lib/l10n/arb/app_en.arb
+    translation: /lib/l10n/arb/app_%locale%.arb
+    languages_mapping:
+      locale:
+        # Short codes for single-variant languages
+        de: de
+        es: es
+        fr: fr
+        hi: hi
+        id: id
+        ja: ja
+        ko: ko
+        nl: nl
+        pt: pt
+        ru: ru
+        # Full codes for Chinese variants
+        zh-CN: zh_CN
+        zh-TW: zh_TW

go_backend/amazon.go

@@ -2,8 +2,10 @@ package gobackend
 
 import (
 	"bufio"
+	"context"
 	"encoding/base64"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -25,10 +27,9 @@ type AmazonDownloader struct {
 }
 
 var (
-	// Global Amazon downloader instance for connection reuse
 	globalAmazonDownloader *AmazonDownloader
 	amazonDownloaderOnce   sync.Once
-	amazonRateLimitMu      sync.Mutex // Mutex for rate limiting
+	amazonRateLimitMu      sync.Mutex
 )
 
 // DoubleDoubleSubmitResponse is the response from DoubleDouble submit endpoint
@@ -53,17 +54,14 @@ func amazonArtistsMatch(expectedArtist, foundArtist string) bool {
 	normExpected := strings.ToLower(strings.TrimSpace(expectedArtist))
 	normFound := strings.ToLower(strings.TrimSpace(foundArtist))
 
-	// Exact match
 	if normExpected == normFound {
 		return true
 	}
 
-	// Check if one contains the other
 	if strings.Contains(normExpected, normFound) || strings.Contains(normFound, normExpected) {
 		return true
 	}
 
-	// Check first artist (before comma or feat)
 	expectedFirst := strings.Split(normExpected, ",")[0]
 	expectedFirst = strings.Split(expectedFirst, " feat")[0]
 	expectedFirst = strings.Split(expectedFirst, " ft.")[0]
@@ -78,13 +76,10 @@ func amazonArtistsMatch(expectedArtist, foundArtist string) bool {
 		return true
 	}
 
-	// Check if first artist is contained in the other
 	if strings.Contains(expectedFirst, foundFirst) || strings.Contains(foundFirst, expectedFirst) {
 		return true
 	}
 
-	// If scripts are different (one is ASCII, one is non-ASCII like Japanese/Chinese/Korean),
-	// assume they're the same artist with different transliteration
 	expectedASCII := amazonIsASCIIString(expectedArtist)
 	foundASCII := amazonIsASCIIString(foundArtist)
 	if expectedASCII != foundASCII {
@@ -125,7 +120,6 @@ func (a *AmazonDownloader) waitForRateLimit() {
 
 	now := time.Now()
 
-	// Reset counter every minute
 	if now.Sub(a.apiCallResetTime) >= time.Minute {
 		a.apiCallCount = 0
 		a.apiCallResetTime = now
@@ -153,7 +147,6 @@ func (a *AmazonDownloader) waitForRateLimit() {
 		}
 	}
 
-	// Update tracking
 	a.lastAPICallTime = time.Now()
 	a.apiCallCount++
 }
@@ -179,8 +172,6 @@ func (a *AmazonDownloader) downloadFromDoubleDoubleService(amazonURL, _ string)
 	for _, region := range a.regions {
 		GoLog("[Amazon] Trying region: %s...\n", region)
 
-		// Build base URL for DoubleDouble service
-		// Decode base64 service URL (same as PC)
 		serviceBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly8=")               // https://
 		serviceDomain, _ := base64.StdEncoding.DecodeString("LmRvdWJsZWRvdWJsZS50b3A=") // .doubledouble.top
 		baseURL := fmt.Sprintf("%s%s%s", string(serviceBase), region, string(serviceDomain))
@@ -299,7 +290,6 @@ func (a *AmazonDownloader) downloadFromDoubleDoubleService(amazonURL, _ string)
 			if status.Status == "done" {
 				fmt.Println("\n[Amazon] Download ready!")
 
-				// Build download URL
 				fileURL := status.URL
 				if strings.HasPrefix(fileURL, "./") {
 					fileURL = fmt.Sprintf("%s/%s", baseURL, fileURL[2:])
@@ -346,13 +336,21 @@ func (a *AmazonDownloader) downloadFromDoubleDoubleService(amazonURL, _ string)
 
 // DownloadFile downloads a file from URL with User-Agent and progress tracking
 func (a *AmazonDownloader) DownloadFile(downloadURL, outputPath, itemID string) error {
+	ctx := context.Background()
+
 	// Initialize item progress (required for all downloads)
 	if itemID != "" {
 		StartItemProgress(itemID)
 		defer CompleteItemProgress(itemID)
+		ctx = initDownloadCancel(itemID)
+		defer clearDownloadCancel(itemID)
 	}
 
-	req, err := http.NewRequest("GET", downloadURL, nil)
+	if isDownloadCancelled(itemID) {
+		return ErrDownloadCancelled
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "GET", downloadURL, nil)
 	if err != nil {
 		return fmt.Errorf("failed to create request: %w", err)
 	}
@@ -361,6 +359,9 @@ func (a *AmazonDownloader) DownloadFile(downloadURL, outputPath, itemID string)
 
 	resp, err := a.client.Do(req)
 	if err != nil {
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		return err
 	}
 	defer resp.Body.Close()
@@ -370,7 +371,6 @@ func (a *AmazonDownloader) DownloadFile(downloadURL, outputPath, itemID string)
 	}
 
 	expectedSize := resp.ContentLength
-	// Set total bytes if available
 	if expectedSize > 0 && itemID != "" {
 		SetItemBytesTotal(itemID, expectedSize)
 	}
@@ -380,16 +380,13 @@ func (a *AmazonDownloader) DownloadFile(downloadURL, outputPath, itemID string)
 		return err
 	}
 
-	// Use buffered writer for better performance (256KB buffer)
 	bufWriter := bufio.NewWriterSize(out, 256*1024)
 
-	// Use item progress writer with buffered output
 	var written int64
 	if itemID != "" {
 		pw := NewItemProgressWriter(bufWriter, itemID)
 		written, err = io.Copy(pw, resp.Body)
 	} else {
-		// Fallback: direct copy without progress tracking
 		written, err = io.Copy(bufWriter, resp.Body)
 	}
 
@@ -397,9 +394,11 @@ func (a *AmazonDownloader) DownloadFile(downloadURL, outputPath, itemID string)
 	flushErr := bufWriter.Flush()
 	closeErr := out.Close()
 
-	// Check for any errors
 	if err != nil {
 		os.Remove(outputPath)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		return fmt.Errorf("download interrupted: %w", err)
 	}
 	if flushErr != nil {
@@ -440,24 +439,19 @@ type AmazonDownloadResult struct {
 func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 	downloader := NewAmazonDownloader()
 
-	// Check for existing file first
 	if existingFile, exists := checkISRCExistsInternal(req.OutputDir, req.ISRC); exists {
 		return AmazonDownloadResult{FilePath: "EXISTS:" + existingFile}, nil
 	}
 
-	// Get Amazon URL from SongLink
 	songlink := NewSongLinkClient()
 	var availability *TrackAvailability
 	var err error
 
-	// Check if SpotifyID is actually a Deezer ID (format: "deezer:xxxxx")
 	if strings.HasPrefix(req.SpotifyID, "deezer:") {
-		// Extract Deezer ID and use Deezer-based lookup
 		deezerID := strings.TrimPrefix(req.SpotifyID, "deezer:")
 		GoLog("[Amazon] Using Deezer ID for SongLink lookup: %s\n", deezerID)
 		availability, err = songlink.CheckAvailabilityFromDeezer(deezerID)
 	} else if req.SpotifyID != "" {
-		// Use Spotify ID
 		availability, err = songlink.CheckTrackAvailability(req.SpotifyID, req.ISRC)
 	} else {
 		return AmazonDownloadResult{}, fmt.Errorf("no valid Spotify or Deezer ID provided for Amazon lookup")
@@ -471,7 +465,6 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 		return AmazonDownloadResult{}, fmt.Errorf("track not available on Amazon Music (SongLink returned no Amazon URL)")
 	}
 
-	// Create output directory if needed
 	if req.OutputDir != "." {
 		if err := os.MkdirAll(req.OutputDir, 0755); err != nil {
 			return AmazonDownloadResult{}, fmt.Errorf("failed to create output directory: %w", err)
@@ -490,10 +483,8 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 		return AmazonDownloadResult{}, fmt.Errorf("artist mismatch: expected '%s', got '%s'", req.ArtistName, artistName)
 	}
 
-	// Log match found
 	GoLog("[Amazon] Match found: '%s' by '%s'\n", trackName, artistName)
 
-	// Build filename using Spotify metadata (more accurate)
 	filename := buildFilenameFromTemplate(req.FilenameFormat, map[string]interface{}{
 		"title":  req.TrackName,
 		"artist": req.ArtistName,
@@ -505,7 +496,6 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 	filename = sanitizeFilename(filename) + ".flac"
 	outputPath := filepath.Join(req.OutputDir, filename)
 
-	// Check if file already exists
 	if fileInfo, statErr := os.Stat(outputPath); statErr == nil && fileInfo.Size() > 0 {
 		return AmazonDownloadResult{FilePath: "EXISTS:" + outputPath}, nil
 	}
@@ -522,19 +512,21 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 			req.TrackName,
 			req.ArtistName,
 			req.EmbedLyrics,
+			int64(req.DurationMS),
 		)
 	}()
 
 	// Download audio file with item ID for progress tracking
 	if err := downloader.DownloadFile(downloadURL, outputPath, req.ItemID); err != nil {
+		if errors.Is(err, ErrDownloadCancelled) {
+			return AmazonDownloadResult{}, ErrDownloadCancelled
+		}
 		return AmazonDownloadResult{}, fmt.Errorf("download failed: %w", err)
 	}
 
 	// Wait for parallel operations to complete
 	<-parallelDone
 
-	// Set progress to 100% and status to finalizing (before embedding)
-	// This makes the UI show "Finalizing..." while embedding happens
 	if req.ItemID != "" {
 		SetItemProgress(req.ItemID, 1.0, 0, 0)
 		SetItemFinalizing(req.ItemID)
@@ -545,14 +537,11 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 		GoLog("[Amazon] DoubleDouble returned: %s - %s\n", artistName, trackName)
 	}
 
-	// Read existing metadata from downloaded file BEFORE embedding
-	// Amazon/DoubleDouble files often have correct track/disc numbers that we should preserve
 	existingMeta, metaErr := ReadMetadata(outputPath)
 	actualTrackNum := req.TrackNumber
 	actualDiscNum := req.DiscNumber
 
 	if metaErr == nil && existingMeta != nil {
-		// Use file metadata if it has valid track/disc numbers and request doesn't have them
 		if existingMeta.TrackNumber > 0 && (req.TrackNumber == 0 || req.TrackNumber == 1) {
 			actualTrackNum = existingMeta.TrackNumber
 			GoLog("[Amazon] Using track number from file: %d (request had: %d)\n", actualTrackNum, req.TrackNumber)
@@ -602,8 +591,6 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 
 	fmt.Println("[Amazon] ✓ Downloaded successfully from Amazon Music")
 
-	// Read actual quality from the downloaded FLAC file
-	// Amazon API doesn't provide quality info, but we can read it from the file itself
 	quality, err := GetAudioQuality(outputPath)
 	if err != nil {
 		GoLog("[Amazon] Warning: couldn't read quality from file: %v\n", err)
@@ -611,8 +598,6 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 		GoLog("[Amazon] Actual quality: %d-bit/%dHz\n", quality.BitDepth, quality.SampleRate)
 	}
 
-	// Read metadata from file AFTER embedding to get accurate values
-	// This ensures we return what's actually in the file
 	finalMeta, metaReadErr := ReadMetadata(outputPath)
 	if metaReadErr == nil && finalMeta != nil {
 		GoLog("[Amazon] Final metadata from file - Track: %d, Disc: %d, Date: %s\n",
@@ -620,7 +605,6 @@ func downloadFromAmazon(req DownloadRequest) (AmazonDownloadResult, error) {
 		actualTrackNum = finalMeta.TrackNumber
 		actualDiscNum = finalMeta.DiscNumber
 		if finalMeta.Date != "" {
-			// Use date from file if available
 			req.ReleaseDate = finalMeta.Date
 		}
 	}

go_backend/cancel.go

@@ -0,0 +1,78 @@
+package gobackend
+
+import (
+	"context"
+	"errors"
+	"sync"
+)
+
+// ErrDownloadCancelled is returned when a download is cancelled by the user.
+var ErrDownloadCancelled = errors.New("download cancelled")
+
+type cancelEntry struct {
+	cancel   context.CancelFunc
+	canceled bool
+}
+
+var (
+	cancelMu  sync.Mutex
+	cancelMap = make(map[string]*cancelEntry)
+)
+
+func initDownloadCancel(itemID string) context.Context {
+	if itemID == "" {
+		return context.Background()
+	}
+
+	cancelMu.Lock()
+	defer cancelMu.Unlock()
+
+	ctx, cancel := context.WithCancel(context.Background())
+	cancelMap[itemID] = &cancelEntry{
+		cancel:   cancel,
+		canceled: false,
+	}
+	return ctx
+}
+
+func cancelDownload(itemID string) {
+	if itemID == "" {
+		return
+	}
+
+	cancelMu.Lock()
+	entry, ok := cancelMap[itemID]
+	if ok {
+		entry.canceled = true
+		if entry.cancel != nil {
+			entry.cancel()
+		}
+	} else {
+		cancelMap[itemID] = &cancelEntry{canceled: true}
+	}
+	cancelMu.Unlock()
+
+	RemoveItemProgress(itemID)
+}
+
+func isDownloadCancelled(itemID string) bool {
+	if itemID == "" {
+		return false
+	}
+
+	cancelMu.Lock()
+	entry, ok := cancelMap[itemID]
+	canceled := ok && entry.canceled
+	cancelMu.Unlock()
+	return canceled
+}
+
+func clearDownloadCancel(itemID string) {
+	if itemID == "" {
+		return
+	}
+
+	cancelMu.Lock()
+	delete(cancelMap, itemID)
+	cancelMu.Unlock()
+}

go_backend/cover.go

@@ -4,15 +4,29 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"regexp"
 	"strings"
 )
 
 // Spotify image size codes (same as PC version)
 const (
-	spotifySize640 = "ab67616d0000b273" // 640x640
+	spotifySize300 = "ab67616d00001e02" // 300x300 (small)
+	spotifySize640 = "ab67616d0000b273" // 640x640 (medium)
 	spotifySizeMax = "ab67616d000082c1" // Max resolution (~2000x2000)
 )
 
+// Deezer CDN supports these sizes: 56, 250, 500, 1000, 1400, 1800
+var deezerSizeRegex = regexp.MustCompile(`/(\d+)x(\d+)-\d+-\d+-\d+-\d+\.jpg$`)
+
+// convertSmallToMedium upgrades 300x300 cover URL to 640x640
+// Same logic as PC version for consistency
+func convertSmallToMedium(imageURL string) string {
+	if strings.Contains(imageURL, spotifySize300) {
+		return strings.Replace(imageURL, spotifySize300, spotifySize640, 1)
+	}
+	return imageURL
+}
+
 // downloadCoverToMemory downloads cover art and returns as bytes (no file creation)
 // This avoids file permission issues on Android
 func downloadCoverToMemory(coverURL string, maxQuality bool) ([]byte, error) {
@@ -20,20 +34,28 @@ func downloadCoverToMemory(coverURL string, maxQuality bool) ([]byte, error) {
 		return nil, fmt.Errorf("no cover URL provided")
 	}
 
-	fmt.Printf("[Cover] Downloading cover from: %s\n", coverURL)
+	GoLog("[Cover] Original URL: %s", coverURL)
+
+	downloadURL := convertSmallToMedium(coverURL)
+	if downloadURL != coverURL {
+		GoLog("[Cover] Upgraded 300x300 → 640x640")
+	}
 
-	// Upgrade to max quality if requested
-	downloadURL := coverURL
 	if maxQuality {
-		downloadURL = upgradeToMaxQuality(coverURL)
-		if downloadURL != coverURL {
-			fmt.Printf("[Cover] Upgraded to max quality URL: %s\n", downloadURL)
+		maxURL := upgradeToMaxQuality(downloadURL)
+		if maxURL != downloadURL {
+			downloadURL = maxURL
+			// Log already printed by upgradeToMaxQuality for Deezer
+			if strings.Contains(coverURL, "scdn.co") || strings.Contains(coverURL, "spotifycdn") {
+				GoLog("[Cover] Spotify: upgraded to max resolution (~2000x2000)")
+			}
 		}
 	}
 
+	GoLog("[Cover] Final URL: %s", downloadURL)
+
 	client := NewHTTPClientWithTimeout(DefaultTimeout)
 
-	// Create request with User-Agent (required by Spotify CDN)
 	req, err := http.NewRequest("GET", downloadURL, nil)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create request: %w", err)
@@ -54,48 +76,64 @@ func downloadCoverToMemory(coverURL string, maxQuality bool) ([]byte, error) {
 		return nil, fmt.Errorf("failed to read cover data: %w", err)
 	}
 
-	fmt.Printf("[Cover] Downloaded %d bytes\n", len(data))
+	sizeKB := len(data) / 1024
+	var resolution string
+	if sizeKB > 200 {
+		resolution = "~2000x2000 (hi-res)"
+	} else if sizeKB > 50 {
+		resolution = "~640x640"
+	} else {
+		resolution = "~300x300"
+	}
+	GoLog("[Cover] Downloaded %d KB (%s)", sizeKB, resolution)
+
 	return data, nil
 }
 
-// upgradeToMaxQuality upgrades Spotify cover URL to maximum quality
-// Uses same logic as PC version - replaces 640x640 size code with max resolution
+// upgradeToMaxQuality upgrades cover URL to maximum quality
+// Supports both Spotify and Deezer CDNs
 func upgradeToMaxQuality(coverURL string) string {
-	// Spotify image URLs can be upgraded by changing the size parameter
-	// Format: https://i.scdn.co/image/ab67616d0000b273...
-	// ab67616d0000b273 = 640x640
-	// ab67616d000082c1 = Max resolution (~2000x2000)
-
+	// Spotify CDN upgrade
 	if strings.Contains(coverURL, spotifySize640) {
-		// Try max resolution first
-		maxURL := strings.Replace(coverURL, spotifySize640, spotifySizeMax, 1)
+		return strings.Replace(coverURL, spotifySize640, spotifySizeMax, 1)
+	}
 
-		// Verify max resolution URL is available
-		client := NewHTTPClientWithTimeout(DefaultTimeout)
-		req, err := http.NewRequest("HEAD", maxURL, nil)
-		if err == nil {
-			resp, err := DoRequestWithUserAgent(client, req)
-			if err == nil {
-				resp.Body.Close()
-				if resp.StatusCode == http.StatusOK {
-					return maxURL
-				}
-			}
-		}
+	// Deezer CDN upgrade
+	if strings.Contains(coverURL, "cdn-images.dzcdn.net") {
+		return upgradeDeezerCover(coverURL)
 	}
 
 	return coverURL
 }
 
+// upgradeDeezerCover upgrades Deezer cover URL to maximum quality (1800x1800)
+// Deezer CDN format: https://cdn-images.dzcdn.net/images/cover/{hash}/{size}x{size}-000000-80-0-0.jpg
+// Available sizes: 56, 250, 500, 1000, 1400, 1800
+func upgradeDeezerCover(coverURL string) string {
+	if !strings.Contains(coverURL, "cdn-images.dzcdn.net") {
+		return coverURL
+	}
+
+	// Replace any size pattern with 1800x1800
+	upgraded := deezerSizeRegex.ReplaceAllString(coverURL, "/1800x1800-000000-80-0-0.jpg")
+	if upgraded != coverURL {
+		GoLog("[Cover] Deezer: upgraded to 1800x1800")
+	}
+	return upgraded
+}
+
 // GetCoverFromSpotify gets cover URL from Spotify metadata
 func GetCoverFromSpotify(imageURL string, maxQuality bool) string {
 	if imageURL == "" {
 		return ""
 	}
 
+	// Always upgrade small to medium first
+	result := convertSmallToMedium(imageURL)
+
 	if maxQuality {
-		return upgradeToMaxQuality(imageURL)
+		result = upgradeToMaxQuality(result)
 	}
 
-	return imageURL
+	return result
 }

go_backend/deezer.go

@@ -22,8 +22,7 @@ const (
 
 	deezerCacheTTL = 10 * time.Minute
 
-	// Parallel ISRC fetching settings
-	deezerMaxParallelISRC = 10 // Max concurrent ISRC fetches
+	deezerMaxParallelISRC = 10
 )
 
 // DeezerClient handles Deezer API interactions (no auth required)
@@ -36,7 +35,6 @@ type DeezerClient struct {
 	cacheMu     sync.RWMutex
 }
 
-// Singleton instance
 var (
 	deezerClient     *DeezerClient
 	deezerClientOnce sync.Once
@@ -89,11 +87,9 @@ type deezerAlbumSimple struct {
 	CoverBig    string `json:"cover_big"`
 	CoverXL     string `json:"cover_xl"`
 	ReleaseDate string `json:"release_date"` // Sometimes at album level
+	RecordType  string `json:"record_type"`  // album, single, ep, compile
 }
 
-// ... (skip other structs as they are fine/unchanged) ...
-
-// ... (in convertTrack) ...
 func (c *DeezerClient) convertTrack(track deezerTrack) TrackMetadata {
 	artistName := track.Artist.Name
 	if len(track.Contributors) > 0 {
@@ -115,7 +111,6 @@ func (c *DeezerClient) convertTrack(track deezerTrack) TrackMetadata {
 		albumImage = track.Album.Cover
 	}
 
-	// Try to find release date
 	releaseDate := track.ReleaseDate
 	if releaseDate == "" {
 		releaseDate = track.Album.ReleaseDate
@@ -543,7 +538,6 @@ func (c *DeezerClient) SearchByISRC(ctx context.Context, isrc string) (*TrackMet
 		return &result, nil
 	}
 
-	// Check if we got a valid response (ID > 0)
 	if track.ID == 0 {
 		return nil, fmt.Errorf("no track found for ISRC: %s", isrc)
 	}
@@ -566,7 +560,6 @@ func (c *DeezerClient) fetchISRCsParallel(ctx context.Context, tracks []deezerTr
 	result := make(map[string]string)
 	var resultMu sync.Mutex
 
-	// First, check cache for existing ISRCs
 	var tracksToFetch []deezerTrack
 	c.cacheMu.RLock()
 	for _, track := range tracks {
@@ -624,7 +617,6 @@ func (c *DeezerClient) fetchISRCsParallel(ctx context.Context, tracks []deezerTr
 // GetTrackISRC fetches ISRC for a single track (with caching)
 // Use this when you need ISRC for download
 func (c *DeezerClient) GetTrackISRC(ctx context.Context, trackID string) (string, error) {
-	// Check cache first
 	c.cacheMu.RLock()
 	if isrc, ok := c.isrcCache[trackID]; ok {
 		c.cacheMu.RUnlock()

go_backend/duplicate.go

@@ -18,30 +18,45 @@ type ISRCIndex struct {
 	mu        sync.RWMutex
 }
 
-// Global ISRC index cache (per output directory)
 var (
 	isrcIndexCache   = make(map[string]*ISRCIndex)
 	isrcIndexCacheMu sync.RWMutex
-	isrcIndexTTL     = 5 * time.Minute // Cache TTL - rebuild after 5 minutes
+	isrcBuildingMu   sync.Map // Per-directory build lock to prevent concurrent builds
+	isrcIndexTTL     = 5 * time.Minute
 )
 
 // GetISRCIndex returns or builds an ISRC index for the given directory
+// Uses per-directory mutex to prevent concurrent builds (race condition fix)
 func GetISRCIndex(outputDir string) *ISRCIndex {
+	// Fast path: check cache first
 	isrcIndexCacheMu.RLock()
 	idx, exists := isrcIndexCache[outputDir]
 	isrcIndexCacheMu.RUnlock()
 
-	// Return cached index if still valid
 	if exists && time.Since(idx.buildTime) < isrcIndexTTL {
 		return idx
 	}
 
-	// Build new index
+	// Slow path: need to build index
+	// Use per-directory mutex to prevent multiple goroutines from building simultaneously
+	buildLock, _ := isrcBuildingMu.LoadOrStore(outputDir, &sync.Mutex{})
+	mu := buildLock.(*sync.Mutex)
+	mu.Lock()
+	defer mu.Unlock()
+
+	// Double-check cache after acquiring lock (another goroutine may have built it)
+	isrcIndexCacheMu.RLock()
+	idx, exists = isrcIndexCache[outputDir]
+	isrcIndexCacheMu.RUnlock()
+
+	if exists && time.Since(idx.buildTime) < isrcIndexTTL {
+		return idx
+	}
+
 	return buildISRCIndex(outputDir)
 }
 
 // buildISRCIndex scans a directory and builds a map of ISRC -> file path
-// Same implementation as PC version for consistency
 func buildISRCIndex(outputDir string) *ISRCIndex {
 	idx := &ISRCIndex{
 		index:     make(map[string]string),
@@ -56,7 +71,6 @@ func buildISRCIndex(outputDir string) *ISRCIndex {
 	startTime := time.Now()
 	fileCount := 0
 
-	// Walk directory - only check .flac files
 	filepath.Walk(outputDir, func(path string, info os.FileInfo, err error) error {
 		if err != nil || info.IsDir() {
 			return nil
@@ -67,13 +81,11 @@ func buildISRCIndex(outputDir string) *ISRCIndex {
 			return nil
 		}
 
-		// Read ISRC from file
 		metadata, err := ReadMetadata(path)
 		if err != nil || metadata.ISRC == "" {
 			return nil
 		}
 
-		// Store in index (uppercase for case-insensitive matching)
 		idx.index[strings.ToUpper(metadata.ISRC)] = path
 		fileCount++
 		return nil
@@ -82,7 +94,6 @@ func buildISRCIndex(outputDir string) *ISRCIndex {
 	fmt.Printf("[ISRCIndex] Built index for %s: %d files in %v\n", 
 		outputDir, fileCount, time.Since(startTime).Round(time.Millisecond))
 
-	// Cache the index
 	isrcIndexCacheMu.Lock()
 	isrcIndexCache[outputDir] = idx
 	isrcIndexCacheMu.Unlock()
@@ -90,7 +101,6 @@ func buildISRCIndex(outputDir string) *ISRCIndex {
 	return idx
 }
 
-// lookup checks if an ISRC exists in the index (internal, returns bool)
 func (idx *ISRCIndex) lookup(isrc string) (string, bool) {
 	if isrc == "" {
 		return "", false
@@ -103,6 +113,18 @@ func (idx *ISRCIndex) lookup(isrc string) (string, bool) {
 	return path, exists
 }
 
+// remove deletes an ISRC entry from the index (internal use)
+func (idx *ISRCIndex) remove(isrc string) {
+	if isrc == "" {
+		return
+	}
+
+	idx.mu.Lock()
+	defer idx.mu.Unlock()
+
+	delete(idx.index, strings.ToUpper(isrc))
+}
+
 // Lookup checks if an ISRC exists in the index (gomobile compatible)
 // Returns filepath if found, empty string if not found
 func (idx *ISRCIndex) Lookup(isrc string) (string, error) {
@@ -138,7 +160,18 @@ func checkISRCExistsInternal(outputDir, isrc string) (string, bool) {
 
 	// Use index for fast lookup
 	idx := GetISRCIndex(outputDir)
-	return idx.lookup(isrc)
+	filePath, exists := idx.lookup(isrc)
+	if !exists {
+		return "", false
+	}
+
+	if !CheckFileExists(filePath) {
+		// Stale index entry; remove it and return not found.
+		idx.remove(isrc)
+		return "", false
+	}
+
+	return filePath, true
 }
 
 // CheckISRCExists is the exported version for gomobile (returns string, error)
@@ -170,7 +203,6 @@ type FileExistenceResult struct {
 // It builds an ISRC index from the output directory once, then checks all tracks against it
 // Same implementation as PC version for consistency
 func CheckFilesExistParallel(outputDir string, tracksJSON string) (string, error) {
-	// Parse input JSON
 	var tracks []struct {
 		ISRC       string `json:"isrc"`
 		TrackName  string `json:"track_name"`
@@ -182,10 +214,8 @@ func CheckFilesExistParallel(outputDir string, tracksJSON string) (string, error
 
 	results := make([]FileExistenceResult, len(tracks))
 
-	// Build ISRC index from output directory (scan once)
 	isrcIdx := GetISRCIndex(outputDir)
 
-	// Check each track against the index (parallel)
 	var wg sync.WaitGroup
 	for i, track := range tracks {
 		wg.Add(1)
@@ -216,7 +246,6 @@ func CheckFilesExistParallel(outputDir string, tracksJSON string) (string, error
 
 	wg.Wait()
 
-	// Return results as JSON
 	resultJSON, err := json.Marshal(results)
 	if err != nil {
 		return "", fmt.Errorf("failed to marshal results: %w", err)

go_backend/exports.go

@@ -5,9 +5,12 @@ package gobackend
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"strings"
 	"time"
+
+	"github.com/dop251/goja"
 )
 
 // ParseSpotifyURL parses and validates a Spotify URL
@@ -150,6 +153,10 @@ type DownloadRequest struct {
 	ItemID               string `json:"item_id"`     // Unique ID for progress tracking
 	DurationMS           int    `json:"duration_ms"` // Expected duration in milliseconds (for verification)
 	Source               string `json:"source"`      // Extension ID that provided this track (prioritize this extension)
+	// Enriched IDs from Odesli/song.link - used to skip search and directly fetch
+	TidalID  string `json:"tidal_id,omitempty"`
+	QobuzID  string `json:"qobuz_id,omitempty"`
+	DeezerID string `json:"deezer_id,omitempty"`
 }
 
 // DownloadResponse represents the result of a download
@@ -177,7 +184,6 @@ type DownloadResponse struct {
 	SkipMetadataEnrichment bool `json:"skip_metadata_enrichment,omitempty"`
 }
 
-// DownloadResult is a generic result type for all downloaders
 // DownloadResult is a generic result type for all downloaders
 type DownloadResult struct {
 	FilePath    string
@@ -208,6 +214,11 @@ func DownloadTrack(requestJSON string) (string, error) {
 	req.AlbumArtist = strings.TrimSpace(req.AlbumArtist)
 	req.OutputDir = strings.TrimSpace(req.OutputDir)
 
+	// Add output directory to allowed download dirs for extensions
+	if req.OutputDir != "" {
+		AddAllowedDownloadDir(req.OutputDir)
+	}
+
 	var result DownloadResult
 	var err error
 
@@ -271,10 +282,8 @@ func DownloadTrack(requestJSON string) (string, error) {
 		return errorResponse(err.Error())
 	}
 
-	// Check if file already exists
 	if len(result.FilePath) > 7 && result.FilePath[:7] == "EXISTS:" {
 		actualPath := result.FilePath[7:]
-		// Read actual quality from existing file
 		quality, qErr := GetAudioQuality(actualPath)
 		if qErr == nil {
 			result.BitDepth = quality.BitDepth
@@ -300,7 +309,6 @@ func DownloadTrack(requestJSON string) (string, error) {
 		return string(jsonBytes), nil
 	}
 
-	// Read actual quality from downloaded file (more accurate than API)
 	quality, qErr := GetAudioQuality(result.FilePath)
 	if qErr == nil {
 		result.BitDepth = quality.BitDepth
@@ -345,7 +353,11 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 	req.AlbumArtist = strings.TrimSpace(req.AlbumArtist)
 	req.OutputDir = strings.TrimSpace(req.OutputDir)
 
-	// Build service order starting with preferred service
+	// Add output directory to allowed download dirs for extensions
+	if req.OutputDir != "" {
+		AddAllowedDownloadDir(req.OutputDir)
+	}
+
 	allServices := []string{"tidal", "qobuz", "amazon"}
 	preferredService := req.Service
 	if preferredService == "" {
@@ -354,7 +366,6 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 
 	GoLog("[DownloadWithFallback] Preferred service from request: '%s'\n", req.Service)
 
-	// Create ordered list: preferred first, then others
 	services := []string{preferredService}
 	for _, s := range allServices {
 		if s != preferredService {
@@ -389,7 +400,7 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 					DiscNumber:  tidalResult.DiscNumber,
 					ISRC:        tidalResult.ISRC,
 				}
-			} else {
+			} else if !errors.Is(tidalErr, ErrDownloadCancelled) {
 				GoLog("[DownloadWithFallback] Tidal error: %v\n", tidalErr)
 			}
 			err = tidalErr
@@ -408,7 +419,7 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 					DiscNumber:  qobuzResult.DiscNumber,
 					ISRC:        qobuzResult.ISRC,
 				}
-			} else {
+			} else if !errors.Is(qobuzErr, ErrDownloadCancelled) {
 				GoLog("[DownloadWithFallback] Qobuz error: %v\n", qobuzErr)
 			}
 			err = qobuzErr
@@ -427,17 +438,19 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 					DiscNumber:  amazonResult.DiscNumber,
 					ISRC:        amazonResult.ISRC,
 				}
-			} else {
+			} else if !errors.Is(amazonErr, ErrDownloadCancelled) {
 				GoLog("[DownloadWithFallback] Amazon error: %v\n", amazonErr)
 			}
 			err = amazonErr
 		}
 
+		if err != nil && errors.Is(err, ErrDownloadCancelled) {
+			return errorResponse("Download cancelled")
+		}
+
 		if err == nil {
-			// Check if file already exists
 			if len(result.FilePath) > 7 && result.FilePath[:7] == "EXISTS:" {
 				actualPath := result.FilePath[7:]
-				// Read actual quality from existing file
 				quality, qErr := GetAudioQuality(actualPath)
 				if qErr == nil {
 					result.BitDepth = quality.BitDepth
@@ -463,7 +476,6 @@ func DownloadWithFallback(requestJSON string) (string, error) {
 				return string(jsonBytes), nil
 			}
 
-			// Read actual quality from downloaded file (more accurate than API)
 			quality, qErr := GetAudioQuality(result.FilePath)
 			if qErr == nil {
 				result.BitDepth = quality.BitDepth
@@ -518,7 +530,6 @@ func InitItemProgress(itemID string) {
 // FinishItemProgress marks a download item as complete and removes tracking
 func FinishItemProgress(itemID string) {
 	CompleteItemProgress(itemID)
-	// Don't remove immediately - let Flutter poll one more time to see 100%
 }
 
 // ClearItemProgress removes progress tracking for a specific item
@@ -526,6 +537,11 @@ func ClearItemProgress(itemID string) {
 	RemoveItemProgress(itemID)
 }
 
+// CancelDownload cancels an in-progress download for the given item.
+func CancelDownload(itemID string) {
+	cancelDownload(itemID)
+}
+
 // CleanupConnections closes idle HTTP connections
 // Call this periodically during large batch downloads to prevent TCP exhaustion
 func CleanupConnections() {
@@ -541,10 +557,8 @@ func ReadFileMetadata(filePath string) (string, error) {
 		return "", fmt.Errorf("failed to read metadata: %w", err)
 	}
 
-	// Also get audio quality info
 	quality, qualityErr := GetAudioQuality(filePath)
 
-	// Get duration from FLAC stream info
 	duration := 0
 	if qualityErr == nil && quality.SampleRate > 0 && quality.TotalSamples > 0 {
 		duration = int(quality.TotalSamples / int64(quality.SampleRate))
@@ -563,7 +577,6 @@ func ReadFileMetadata(filePath string) (string, error) {
 		"duration":     duration,
 	}
 
-	// Add quality info if available
 	if qualityErr == nil {
 		result["bit_depth"] = quality.BitDepth
 		result["sample_rate"] = quality.SampleRate
@@ -614,7 +627,6 @@ func PreBuildDuplicateIndex(outputDir string) error {
 }
 
 // InvalidateDuplicateIndex clears the ISRC index cache for a directory
-// Call this when files are deleted or moved
 func InvalidateDuplicateIndex(outputDir string) {
 	InvalidateISRCCache(outputDir)
 }
@@ -637,9 +649,11 @@ func SanitizeFilename(filename string) string {
 
 // FetchLyrics fetches lyrics for a track from LRCLIB
 // Returns JSON with lyrics data
-func FetchLyrics(spotifyID, trackName, artistName string) (string, error) {
+// durationMs: track duration in milliseconds for matching, use 0 to skip duration matching
+func FetchLyrics(spotifyID, trackName, artistName string, durationMs int64) (string, error) {
 	client := NewLyricsClient()
-	lyrics, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName)
+	durationSec := float64(durationMs) / 1000.0
+	lyrics, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName, durationSec)
 	if err != nil {
 		return "", err
 	}
@@ -661,8 +675,8 @@ func FetchLyrics(spotifyID, trackName, artistName string) (string, error) {
 
 // GetLyricsLRC fetches lyrics and converts to LRC format string with metadata headers
 // First tries to extract from file, then falls back to fetching from internet
-func GetLyricsLRC(spotifyID, trackName, artistName string, filePath string) (string, error) {
-	// Try to extract from file first (much faster)
+// durationMs: track duration in milliseconds for matching, use 0 to skip duration matching
+func GetLyricsLRC(spotifyID, trackName, artistName string, filePath string, durationMs int64) (string, error) {
 	if filePath != "" {
 		lyrics, err := ExtractLyrics(filePath)
 		if err == nil && lyrics != "" {
@@ -670,14 +684,13 @@ func GetLyricsLRC(spotifyID, trackName, artistName string, filePath string) (str
 		}
 	}
 
-	// Fallback to fetching from internet
 	client := NewLyricsClient()
-	lyricsData, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName)
+	durationSec := float64(durationMs) / 1000.0
+	lyricsData, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName, durationSec)
 	if err != nil {
 		return "", err
 	}
 
-	// Convert to LRC format with metadata headers (like PC version)
 	lrcContent := convertToLRCWithMetadata(lyricsData, trackName, artistName)
 	return lrcContent, nil
 }
@@ -714,7 +727,6 @@ func PreWarmTrackCacheJSON(tracksJSON string) (string, error) {
 		return errorResponse("Invalid JSON: " + err.Error())
 	}
 
-	// Convert to PreWarmCacheRequest
 	requests := make([]PreWarmCacheRequest, len(tracks))
 	for i, t := range tracks {
 		requests[i] = PreWarmCacheRequest{
@@ -726,7 +738,6 @@ func PreWarmTrackCacheJSON(tracksJSON string) (string, error) {
 		}
 	}
 
-	// Run in background
 	go PreWarmTrackCache(requests)
 
 	resp := map[string]interface{}{
@@ -846,7 +857,6 @@ func SearchDeezerByISRC(isrc string) (string, error) {
 }
 
 // ConvertSpotifyToDeezer converts a Spotify track/album ID to Deezer and fetches metadata
-// This uses SongLink API to find the Deezer equivalent, then fetches from Deezer
 // Useful when Spotify API is rate limited
 func ConvertSpotifyToDeezer(resourceType, spotifyID string) (string, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
@@ -855,14 +865,12 @@ func ConvertSpotifyToDeezer(resourceType, spotifyID string) (string, error) {
 	songlink := NewSongLinkClient()
 	deezerClient := GetDeezerClient()
 
-	// For tracks, we can use SongLink to get Deezer ID
 	if resourceType == "track" {
 		deezerID, err := songlink.GetDeezerIDFromSpotify(spotifyID)
 		if err != nil {
 			return "", fmt.Errorf("could not find Deezer equivalent: %w", err)
 		}
 
-		// Fetch metadata from Deezer
 		trackResp, err := deezerClient.GetTrack(ctx, deezerID)
 		if err != nil {
 			return "", fmt.Errorf("failed to fetch Deezer metadata: %w", err)
@@ -876,14 +884,12 @@ func ConvertSpotifyToDeezer(resourceType, spotifyID string) (string, error) {
 		return string(jsonBytes), nil
 	}
 
-	// For albums, SongLink also provides mapping
 	if resourceType == "album" {
 		deezerID, err := songlink.GetDeezerAlbumIDFromSpotify(spotifyID)
 		if err != nil {
 			return "", fmt.Errorf("could not find Deezer album: %w", err)
 		}
 
-		// Fetch album metadata from Deezer
 		albumResp, err := deezerClient.GetAlbum(ctx, deezerID)
 		if err != nil {
 			return "", fmt.Errorf("failed to fetch Deezer album metadata: %w", err)
@@ -906,10 +912,8 @@ func GetSpotifyMetadataWithDeezerFallback(spotifyURL string) (string, error) {
 	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
 	defer cancel()
 
-	// Try Spotify first
 	client, err := NewSpotifyMetadataClient()
 	if err != nil {
-		// No Spotify credentials - fall through to Deezer fallback
 		LogWarn("Spotify", "Credentials not configured, falling back to Deezer")
 	} else {
 		data, err := client.GetFilteredData(ctx, spotifyURL, false, 0)
@@ -921,15 +925,12 @@ func GetSpotifyMetadataWithDeezerFallback(spotifyURL string) (string, error) {
 			return string(jsonBytes), nil
 		}
 
-		// Check if it's a rate limit error
 		errStr := strings.ToLower(err.Error())
 		if !strings.Contains(errStr, "429") && !strings.Contains(errStr, "rate") && !strings.Contains(errStr, "limit") {
-			// Not a rate limit error, return original error
 			return "", err
 		}
 	}
 
-	// Rate limited - try Deezer fallback for tracks and albums
 	parsed, parseErr := parseSpotifyURI(spotifyURL)
 	if parseErr != nil {
 		return "", fmt.Errorf("spotify rate limited and failed to parse URL: %w", parseErr)
@@ -938,11 +939,9 @@ func GetSpotifyMetadataWithDeezerFallback(spotifyURL string) (string, error) {
 	GoLog("[Fallback] Spotify rate limited for %s, trying Deezer...\n", parsed.Type)
 
 	if parsed.Type == "track" || parsed.Type == "album" {
-		// Convert to Deezer
 		return ConvertSpotifyToDeezer(parsed.Type, parsed.ID)
 	}
 
-	// Artist and playlist not supported for fallback
 	if parsed.Type == "artist" {
 		return "", fmt.Errorf("spotify rate limited. Artist pages require Spotify API - please try again later")
 	}
@@ -1007,7 +1006,6 @@ func GetAmazonURLFromDeezerTrack(deezerTrackID string) (string, error) {
 }
 
 func errorResponse(msg string) (string, error) {
-	// Determine error type based on message
 	errorType := "unknown"
 	lowerMsg := strings.ToLower(msg)
 
@@ -1015,6 +1013,8 @@ func errorResponse(msg string) (string, error) {
 		strings.Contains(lowerMsg, "try using vpn") ||
 		strings.Contains(lowerMsg, "change dns") {
 		errorType = "isp_blocked"
+	} else if strings.Contains(lowerMsg, "cancel") {
+		errorType = "cancelled"
 	} else if strings.Contains(lowerMsg, "permission") ||
 		strings.Contains(lowerMsg, "operation not permitted") ||
 		strings.Contains(lowerMsg, "access denied") ||
@@ -1094,7 +1094,6 @@ func LoadExtensionFromPath(filePath string) (string, error) {
 		return "", err
 	}
 
-	// Initialize with saved settings
 	settingsStore := GetExtensionSettingsStore()
 	settings := settingsStore.GetAll(ext.ID)
 	if len(settings) > 0 {
@@ -1245,7 +1244,6 @@ func SetExtensionSettingsJSON(extensionID, settingsJSON string) error {
 		return err
 	}
 
-	// Re-initialize extension with new settings
 	manager := GetExtensionManager()
 	return manager.InitializeExtension(extensionID, settings)
 }
@@ -1344,7 +1342,6 @@ func IsExtensionAuthenticatedByID(extensionID string) bool {
 		return false
 	}
 
-	// Check if token is expired
 	if state.IsAuthenticated && !state.ExpiresAt.IsZero() && time.Now().After(state.ExpiresAt) {
 		return false
 	}
@@ -1430,6 +1427,39 @@ func GetAllPendingFFmpegCommandsJSON() (string, error) {
 
 // ==================== EXTENSION CUSTOM SEARCH ====================
 
+// EnrichTrackWithExtensionJSON enriches track metadata using the source extension
+// This is called lazily before download starts, allowing extension to fetch real ISRC etc.
+func EnrichTrackWithExtensionJSON(extensionID, trackJSON string) (string, error) {
+	manager := GetExtensionManager()
+	ext, err := manager.GetExtension(extensionID)
+	if err != nil {
+		// Extension not found, return original track
+		return trackJSON, nil
+	}
+
+	if !ext.Manifest.IsMetadataProvider() {
+		return trackJSON, nil
+	}
+
+	var track ExtTrackMetadata
+	if err := json.Unmarshal([]byte(trackJSON), &track); err != nil {
+		return trackJSON, fmt.Errorf("failed to parse track: %w", err)
+	}
+
+	provider := NewExtensionProviderWrapper(ext)
+	enrichedTrack, err := provider.EnrichTrack(&track)
+	if err != nil {
+		return trackJSON, nil
+	}
+
+	jsonBytes, err := json.Marshal(enrichedTrack)
+	if err != nil {
+		return trackJSON, nil
+	}
+
+	return string(jsonBytes), nil
+}
+
 // CustomSearchWithExtensionJSON performs custom search using an extension
 func CustomSearchWithExtensionJSON(extensionID, query string, optionsJSON string) (string, error) {
 	manager := GetExtensionManager()
@@ -1455,7 +1485,6 @@ func CustomSearchWithExtensionJSON(extensionID, query string, optionsJSON string
 		return "", err
 	}
 
-	// Convert to map format for Flutter, ensuring images field is set
 	result := make([]map[string]interface{}, len(tracks))
 	for i, track := range tracks {
 		result[i] = map[string]interface{}{
@@ -1471,6 +1500,8 @@ func CustomSearchWithExtensionJSON(extensionID, query string, optionsJSON string
 			"disc_number":  track.DiscNumber,
 			"isrc":         track.ISRC,
 			"provider_id":  track.ProviderID,
+			"item_type":    track.ItemType,  // track, album, or playlist
+			"album_type":   track.AlbumType, // album, single, ep, compilation
 		}
 	}
 
@@ -1520,12 +1551,10 @@ func HandleURLWithExtensionJSON(url string) (string, error) {
 	result := resultWithID.Result
 	extensionID := resultWithID.ExtensionID
 
-	// Check if result is nil (handler found but returned error)
 	if result == nil {
 		return "", fmt.Errorf("extension %s failed to handle URL", extensionID)
 	}
 
-	// Build response
 	response := map[string]interface{}{
 		"type":         result.Type,
 		"extension_id": extensionID,
@@ -1533,7 +1562,6 @@ func HandleURLWithExtensionJSON(url string) (string, error) {
 		"cover_url":    result.CoverURL,
 	}
 
-	// Add track if single track
 	if result.Track != nil {
 		response["track"] = map[string]interface{}{
 			"id":           result.Track.ID,
@@ -1551,7 +1579,6 @@ func HandleURLWithExtensionJSON(url string) (string, error) {
 		}
 	}
 
-	// Add tracks if multiple
 	if len(result.Tracks) > 0 {
 		tracks := make([]map[string]interface{}, len(result.Tracks))
 		for i, track := range result.Tracks {
@@ -1568,6 +1595,8 @@ func HandleURLWithExtensionJSON(url string) (string, error) {
 				"disc_number":  track.DiscNumber,
 				"isrc":         track.ISRC,
 				"provider_id":  track.ProviderID,
+				"item_type":    track.ItemType,
+				"album_type":   track.AlbumType,
 			}
 		}
 		response["tracks"] = tracks
@@ -1582,16 +1611,66 @@ func HandleURLWithExtensionJSON(url string) (string, error) {
 			"cover_url":    result.Album.CoverURL,
 			"release_date": result.Album.ReleaseDate,
 			"total_tracks": result.Album.TotalTracks,
+			"album_type":   result.Album.AlbumType,
+			"provider_id":  result.Album.ProviderID,
 		}
 	}
 
-	// Add artist info if present
 	if result.Artist != nil {
-		response["artist"] = map[string]interface{}{
-			"id":        result.Artist.ID,
-			"name":      result.Artist.Name,
-			"image_url": result.Artist.ImageURL,
+		artistResponse := map[string]interface{}{
+			"id":           result.Artist.ID,
+			"name":         result.Artist.Name,
+			"image_url":    result.Artist.ImageURL,
+			"header_image": result.Artist.HeaderImage,
+			"listeners":    result.Artist.Listeners,
+			"provider_id":  result.Artist.ProviderID,
 		}
+
+		if len(result.Artist.Albums) > 0 {
+			albums := make([]map[string]interface{}, len(result.Artist.Albums))
+			for i, album := range result.Artist.Albums {
+				albumType := album.AlbumType
+				if albumType == "" {
+					albumType = "album"
+				}
+				albums[i] = map[string]interface{}{
+					"id":           album.ID,
+					"name":         album.Name,
+					"artists":      album.Artists,
+					"images":       album.CoverURL,
+					"cover_url":    album.CoverURL,
+					"release_date": album.ReleaseDate,
+					"total_tracks": album.TotalTracks,
+					"album_type":   albumType,
+					"provider_id":  album.ProviderID,
+				}
+			}
+			artistResponse["albums"] = albums
+		}
+
+		if len(result.Artist.TopTracks) > 0 {
+			topTracks := make([]map[string]interface{}, len(result.Artist.TopTracks))
+			for i, track := range result.Artist.TopTracks {
+				topTracks[i] = map[string]interface{}{
+					"id":           track.ID,
+					"name":         track.Name,
+					"artists":      track.Artists,
+					"album_name":   track.AlbumName,
+					"album_artist": track.AlbumArtist,
+					"duration_ms":  track.DurationMS,
+					"images":       track.ResolvedCoverURL(),
+					"release_date": track.ReleaseDate,
+					"track_number": track.TrackNumber,
+					"disc_number":  track.DiscNumber,
+					"isrc":         track.ISRC,
+					"provider_id":  track.ProviderID,
+					"spotify_id":   track.SpotifyID,
+				}
+			}
+			artistResponse["top_tracks"] = topTracks
+		}
+
+		response["artist"] = artistResponse
 	}
 
 	jsonBytes, err := json.Marshal(response)
@@ -1613,6 +1692,253 @@ func FindURLHandlerJSON(url string) string {
 	return handler.extension.ID
 }
 
+// GetAlbumWithExtensionJSON gets album tracks using an extension
+func GetAlbumWithExtensionJSON(extensionID, albumID string) (string, error) {
+	manager := GetExtensionManager()
+	ext, err := manager.GetExtension(extensionID)
+	if err != nil {
+		return "", err
+	}
+
+	if !ext.Manifest.IsMetadataProvider() {
+		return "", fmt.Errorf("extension '%s' is not a metadata provider", extensionID)
+	}
+	if !ext.Enabled {
+		return "", fmt.Errorf("extension '%s' is disabled", extensionID)
+	}
+
+	provider := NewExtensionProviderWrapper(ext)
+	album, err := provider.GetAlbum(albumID)
+	if err != nil {
+		return "", err
+	}
+
+	if album == nil {
+		return "", fmt.Errorf("album not found")
+	}
+
+	tracks := make([]map[string]interface{}, len(album.Tracks))
+	for i, track := range album.Tracks {
+		trackCover := track.ResolvedCoverURL()
+		if trackCover == "" {
+			trackCover = album.CoverURL
+		}
+		tracks[i] = map[string]interface{}{
+			"id":           track.ID,
+			"name":         track.Name,
+			"artists":      track.Artists,
+			"album_name":   track.AlbumName,
+			"album_artist": track.AlbumArtist,
+			"duration_ms":  track.DurationMS,
+			"cover_url":    trackCover,
+			"release_date": track.ReleaseDate,
+			"track_number": track.TrackNumber,
+			"disc_number":  track.DiscNumber,
+			"isrc":         track.ISRC,
+			"provider_id":  track.ProviderID,
+			"item_type":    track.ItemType,
+			"album_type":   track.AlbumType,
+		}
+	}
+
+	response := map[string]interface{}{
+		"id":           album.ID,
+		"name":         album.Name,
+		"artists":      album.Artists,
+		"cover_url":    album.CoverURL,
+		"release_date": album.ReleaseDate,
+		"total_tracks": album.TotalTracks,
+		"album_type":   album.AlbumType,
+		"tracks":       tracks,
+		"provider_id":  album.ProviderID,
+	}
+
+	jsonBytes, err := json.Marshal(response)
+	if err != nil {
+		return "", err
+	}
+
+	return string(jsonBytes), nil
+}
+
+// GetPlaylistWithExtensionJSON gets playlist tracks using an extension
+func GetPlaylistWithExtensionJSON(extensionID, playlistID string) (string, error) {
+	manager := GetExtensionManager()
+	ext, err := manager.GetExtension(extensionID)
+	if err != nil {
+		return "", err
+	}
+
+	if !ext.Manifest.IsMetadataProvider() {
+		return "", fmt.Errorf("extension '%s' is not a metadata provider", extensionID)
+	}
+
+	provider := NewExtensionProviderWrapper(ext)
+
+	script := fmt.Sprintf(`
+		(function() {
+			if (typeof extension !== 'undefined' && typeof extension.getPlaylist === 'function') {
+				return extension.getPlaylist(%q);
+			}
+			if (typeof extension !== 'undefined' && typeof extension.getAlbum === 'function') {
+				return extension.getAlbum(%q);
+			}
+			return null;
+		})()
+	`, playlistID, playlistID)
+
+	result, err := RunWithTimeoutAndRecover(provider.vm, script, DefaultJSTimeout)
+	if err != nil {
+		return "", fmt.Errorf("getPlaylist failed: %w", err)
+	}
+
+	if result == nil || goja.IsUndefined(result) || goja.IsNull(result) {
+		return "", fmt.Errorf("playlist not found")
+	}
+
+	exported := result.Export()
+	jsonBytes, err := json.Marshal(exported)
+	if err != nil {
+		return "", fmt.Errorf("failed to marshal result: %w", err)
+	}
+
+	// Parse into album metadata (same structure)
+	var album ExtAlbumMetadata
+	if err := json.Unmarshal(jsonBytes, &album); err != nil {
+		return "", fmt.Errorf("failed to parse playlist: %w", err)
+	}
+	album.ProviderID = ext.ID
+	for i := range album.Tracks {
+		album.Tracks[i].ProviderID = ext.ID
+	}
+
+	tracks := make([]map[string]interface{}, len(album.Tracks))
+	for i, track := range album.Tracks {
+		trackCover := track.ResolvedCoverURL()
+		if trackCover == "" {
+			trackCover = album.CoverURL
+		}
+		tracks[i] = map[string]interface{}{
+			"id":           track.ID,
+			"name":         track.Name,
+			"artists":      track.Artists,
+			"album_name":   track.AlbumName,
+			"album_artist": track.AlbumArtist,
+			"duration_ms":  track.DurationMS,
+			"cover_url":    trackCover,
+			"release_date": track.ReleaseDate,
+			"track_number": track.TrackNumber,
+			"disc_number":  track.DiscNumber,
+			"isrc":         track.ISRC,
+			"provider_id":  track.ProviderID,
+			"item_type":    track.ItemType,
+			"album_type":   track.AlbumType,
+		}
+	}
+
+	response := map[string]interface{}{
+		"id":           album.ID,
+		"name":         album.Name,
+		"owner":        album.Artists,
+		"cover_url":    album.CoverURL,
+		"total_tracks": album.TotalTracks,
+		"tracks":       tracks,
+		"provider_id":  album.ProviderID,
+	}
+
+	jsonBytes, err = json.Marshal(response)
+	if err != nil {
+		return "", err
+	}
+
+	return string(jsonBytes), nil
+}
+
+// GetArtistWithExtensionJSON gets artist info and albums using an extension
+func GetArtistWithExtensionJSON(extensionID, artistID string) (string, error) {
+	manager := GetExtensionManager()
+	ext, err := manager.GetExtension(extensionID)
+	if err != nil {
+		return "", err
+	}
+
+	if !ext.Manifest.IsMetadataProvider() {
+		return "", fmt.Errorf("extension '%s' is not a metadata provider", extensionID)
+	}
+
+	provider := NewExtensionProviderWrapper(ext)
+	artist, err := provider.GetArtist(artistID)
+	if err != nil {
+		return "", err
+	}
+
+	if artist == nil {
+		return "", fmt.Errorf("artist not found")
+	}
+
+	albums := make([]map[string]interface{}, len(artist.Albums))
+	for i, album := range artist.Albums {
+		albums[i] = map[string]interface{}{
+			"id":           album.ID,
+			"name":         album.Name,
+			"artists":      album.Artists,
+			"cover_url":    album.CoverURL,
+			"release_date": album.ReleaseDate,
+			"total_tracks": album.TotalTracks,
+			"album_type":   album.AlbumType,
+			"provider_id":  album.ProviderID,
+		}
+	}
+
+	response := map[string]interface{}{
+		"id":          artist.ID,
+		"name":        artist.Name,
+		"cover_url":   artist.ImageURL,
+		"albums":      albums,
+		"provider_id": artist.ProviderID,
+	}
+
+	// Add header image if present
+	if artist.HeaderImage != "" {
+		response["header_image"] = artist.HeaderImage
+	}
+
+	// Add listeners if present
+	if artist.Listeners > 0 {
+		response["listeners"] = artist.Listeners
+	}
+
+	// Add top tracks if present
+	if len(artist.TopTracks) > 0 {
+		topTracks := make([]map[string]interface{}, len(artist.TopTracks))
+		for i, track := range artist.TopTracks {
+			topTracks[i] = map[string]interface{}{
+				"id":           track.ID,
+				"name":         track.Name,
+				"artists":      track.Artists,
+				"album_name":   track.AlbumName,
+				"album_artist": track.AlbumArtist,
+				"duration_ms":  track.DurationMS,
+				"images":       track.ResolvedCoverURL(),
+				"release_date": track.ReleaseDate,
+				"track_number": track.TrackNumber,
+				"disc_number":  track.DiscNumber,
+				"isrc":         track.ISRC,
+				"provider_id":  track.ProviderID,
+				"spotify_id":   track.SpotifyID,
+			}
+		}
+		response["top_tracks"] = topTracks
+	}
+
+	jsonBytes, err := json.Marshal(response)
+	if err != nil {
+		return "", err
+	}
+
+	return string(jsonBytes), nil
+}
+
 // GetURLHandlersJSON returns all extensions that handle custom URLs
 func GetURLHandlersJSON() (string, error) {
 	manager := GetExtensionManager()

go_backend/extension_manager.go

@@ -18,11 +18,9 @@ import (
 // compareVersions compares two semantic version strings
 // Returns: -1 if v1 < v2, 0 if v1 == v2, 1 if v1 > v2
 func compareVersions(v1, v2 string) int {
-	// Parse version parts
 	parts1 := strings.Split(strings.TrimPrefix(v1, "v"), ".")
 	parts2 := strings.Split(strings.TrimPrefix(v2, "v"), ".")
 
-	// Pad shorter version with zeros
 	maxLen := len(parts1)
 	if len(parts2) > maxLen {
 		maxLen = len(parts2)
@@ -52,12 +50,12 @@ func compareVersions(v1, v2 string) int {
 type LoadedExtension struct {
 	ID        string             `json:"id"`
 	Manifest  *ExtensionManifest `json:"manifest"`
-	VM        *goja.Runtime      `json:"-"` // Goja VM instance (not serialized)
+	VM        *goja.Runtime      `json:"-"`
 	Enabled   bool               `json:"enabled"`
 	Error     string             `json:"error,omitempty"`
-	DataDir   string             `json:"data_dir"`   // Extension's data directory
-	SourceDir string             `json:"source_dir"` // Where extension files are extracted
-	IconPath  string             `json:"icon_path"`  // Full path to icon file (if exists)
+	DataDir   string             `json:"data_dir"`
+	SourceDir string             `json:"source_dir"`
+	IconPath  string             `json:"icon_path"`
 }
 
 // ExtensionManager manages all loaded extensions
@@ -68,7 +66,6 @@ type ExtensionManager struct {
 	dataDir       string // Base directory for extension data
 }
 
-// Global extension manager instance
 var (
 	globalExtManager     *ExtensionManager
 	globalExtManagerOnce sync.Once
@@ -92,7 +89,6 @@ func (m *ExtensionManager) SetDirectories(extensionsDir, dataDir string) error {
 	m.extensionsDir = extensionsDir
 	m.dataDir = dataDir
 
-	// Create directories if they don't exist
 	if err := os.MkdirAll(extensionsDir, 0755); err != nil {
 		return fmt.Errorf("failed to create extensions directory: %w", err)
 	}
@@ -117,7 +113,6 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 	}
 	defer zipReader.Close()
 
-	// Find and read manifest.json
 	var manifestData []byte
 	var hasIndexJS bool
 	for _, file := range zipReader.File {
@@ -146,13 +141,11 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 		return nil, fmt.Errorf("Invalid extension package: index.js not found")
 	}
 
-	// Parse and validate manifest
 	manifest, err := ParseManifest(manifestData)
 	if err != nil {
 		return nil, fmt.Errorf("Invalid extension manifest: %w", err)
 	}
 
-	// Check if extension already loaded - if so, try upgrade (check without holding lock for long)
 	m.mu.RLock()
 	existing, exists := m.extensions[manifest.Name]
 	var existingVersion string
@@ -164,7 +157,6 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 	m.mu.RUnlock()
 
 	if exists {
-		// Check if this is an upgrade
 		versionCompare := compareVersions(manifest.Version, existingVersion)
 		if versionCompare > 0 {
 			// This is an upgrade - call UpgradeExtension
@@ -176,37 +168,43 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 		}
 	}
 
-	// Now acquire write lock for the rest of the operation
 	m.mu.Lock()
 	defer m.mu.Unlock()
 
-	// Double-check extension wasn't added while we were waiting for lock
 	if _, exists := m.extensions[manifest.Name]; exists {
 		return nil, fmt.Errorf("Extension '%s' was installed by another process", manifest.DisplayName)
 	}
 
-	// Create extension directory
 	extDir := filepath.Join(m.extensionsDir, manifest.Name)
 	if err := os.MkdirAll(extDir, 0755); err != nil {
 		return nil, fmt.Errorf("failed to create extension directory: %w", err)
 	}
 
-	// Extract all files
+	// Extract all files (preserving directory structure)
 	for _, file := range zipReader.File {
 		if file.FileInfo().IsDir() {
 			continue
 		}
 
-		// Get relative path within the zip
-		destPath := filepath.Join(extDir, filepath.Base(file.Name))
+		// Preserve relative path within the zip (support subdirectories)
+		// Clean the path to prevent path traversal attacks
+		relPath := filepath.Clean(file.Name)
+		if strings.HasPrefix(relPath, "..") || filepath.IsAbs(relPath) {
+			GoLog("[Extension] Skipping unsafe path in archive: %s\n", file.Name)
+			continue
+		}
+		destPath := filepath.Join(extDir, relPath)
+
+		destDir := filepath.Dir(destPath)
+		if err := os.MkdirAll(destDir, 0755); err != nil {
+			return nil, fmt.Errorf("failed to create directory %s: %w", destDir, err)
+		}
 
-		// Create destination file
 		destFile, err := os.Create(destPath)
 		if err != nil {
 			return nil, fmt.Errorf("failed to create file %s: %w", destPath, err)
 		}
 
-		// Copy content
 		srcFile, err := file.Open()
 		if err != nil {
 			destFile.Close()
@@ -221,13 +219,11 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 		}
 	}
 
-	// Create data directory for extension
 	extDataDir := filepath.Join(m.dataDir, manifest.Name)
 	if err := os.MkdirAll(extDataDir, 0755); err != nil {
 		return nil, fmt.Errorf("failed to create extension data directory: %w", err)
 	}
 
-	// Create loaded extension
 	ext := &LoadedExtension{
 		ID:        manifest.Name,
 		Manifest:  manifest,
@@ -251,23 +247,19 @@ func (m *ExtensionManager) LoadExtensionFromFile(filePath string) (*LoadedExtens
 
 // initializeVM creates and initializes the Goja VM for an extension
 func (m *ExtensionManager) initializeVM(ext *LoadedExtension) error {
-	// Create new Goja runtime
 	vm := goja.New()
 	ext.VM = vm
 
-	// Read index.js
 	indexPath := filepath.Join(ext.SourceDir, "index.js")
 	jsCode, err := os.ReadFile(indexPath)
 	if err != nil {
 		return fmt.Errorf("failed to read index.js: %w", err)
 	}
 
-	// Create extension runtime and register sandboxed APIs
 	runtime := NewExtensionRuntime(ext)
 	runtime.RegisterAPIs(vm)
 	runtime.RegisterGoBackendAPIs(vm)
 
-	// Set up console.log for debugging
 	console := vm.NewObject()
 	console.Set("log", func(call goja.FunctionCall) goja.Value {
 		args := make([]interface{}, len(call.Arguments))
@@ -279,12 +271,10 @@ func (m *ExtensionManager) initializeVM(ext *LoadedExtension) error {
 	})
 	vm.Set("console", console)
 
-	// Set up registerExtension function
 	var registeredExtension goja.Value
 	vm.Set("registerExtension", func(call goja.FunctionCall) goja.Value {
 		if len(call.Arguments) > 0 {
 			registeredExtension = call.Arguments[0]
-			// Also set it as global 'extension' variable for later access
 			vm.Set("extension", call.Arguments[0])
 		}
 		return goja.Undefined()
@@ -394,7 +384,6 @@ func (m *ExtensionManager) LoadExtensionsFromDirectory(dirPath string) ([]string
 
 	for _, entry := range entries {
 		if entry.IsDir() {
-			// Check if it's an extracted extension directory
 			manifestPath := filepath.Join(dirPath, entry.Name(), "manifest.json")
 			if _, err := os.Stat(manifestPath); err == nil {
 				ext, err := m.loadExtensionFromDirectory(filepath.Join(dirPath, entry.Name()))
@@ -406,7 +395,6 @@ func (m *ExtensionManager) LoadExtensionsFromDirectory(dirPath string) ([]string
 				}
 			}
 		} else if strings.HasSuffix(strings.ToLower(entry.Name()), ".spotiflac-ext") {
-			// Load from package file
 			ext, err := m.LoadExtensionFromFile(filepath.Join(dirPath, entry.Name()))
 			if err != nil {
 				GoLog("[Extension] Failed to load %s: %v\n", entry.Name(), err)
@@ -425,7 +413,6 @@ func (m *ExtensionManager) loadExtensionFromDirectory(dirPath string) (*LoadedEx
 	m.mu.Lock()
 	defer m.mu.Unlock()
 
-	// Read manifest
 	manifestPath := filepath.Join(dirPath, "manifest.json")
 	manifestData, err := os.ReadFile(manifestPath)
 	if err != nil {
@@ -438,24 +425,21 @@ func (m *ExtensionManager) loadExtensionFromDirectory(dirPath string) (*LoadedEx
 		return nil, fmt.Errorf("Invalid extension manifest: %w", err)
 	}
 
-	// Check if index.js exists
 	indexPath := filepath.Join(dirPath, "index.js")
 	if _, err := os.Stat(indexPath); os.IsNotExist(err) {
 		return nil, fmt.Errorf("Extension is missing index.js file")
 	}
 
-	// Check if extension already loaded - skip if already exists (for directory loading on startup)
-	if _, exists := m.extensions[manifest.Name]; exists {
-		return nil, fmt.Errorf("Extension '%s' is already loaded", manifest.DisplayName)
+	if existing, exists := m.extensions[manifest.Name]; exists {
+		GoLog("[Extension] Extension '%s' already loaded, skipping\n", manifest.DisplayName)
+		return existing, nil
 	}
 
-	// Create data directory for extension
 	extDataDir := filepath.Join(m.dataDir, manifest.Name)
 	if err := os.MkdirAll(extDataDir, 0755); err != nil {
 		return nil, fmt.Errorf("failed to create extension data directory: %w", err)
 	}
 
-	// Create loaded extension
 	ext := &LoadedExtension{
 		ID:        manifest.Name,
 		Manifest:  manifest,
@@ -528,7 +512,6 @@ func (m *ExtensionManager) UpgradeExtension(filePath string) (*LoadedExtension,
 	}
 	defer zipReader.Close()
 
-	// Find and read manifest.json
 	var manifestData []byte
 	var hasIndexJS bool
 	for _, file := range zipReader.File {
@@ -557,13 +540,11 @@ func (m *ExtensionManager) UpgradeExtension(filePath string) (*LoadedExtension,
 		return nil, fmt.Errorf("Invalid extension package: index.js not found")
 	}
 
-	// Parse and validate manifest
 	newManifest, err := ParseManifest(manifestData)
 	if err != nil {
 		return nil, fmt.Errorf("Invalid extension manifest: %w", err)
 	}
 
-	// Check if extension exists
 	m.mu.RLock()
 	existing, exists := m.extensions[newManifest.Name]
 	m.mu.RUnlock()
@@ -599,27 +580,32 @@ func (m *ExtensionManager) UpgradeExtension(filePath string) (*LoadedExtension,
 		}
 	}
 
-	// Recreate extension directory
 	if err := os.MkdirAll(extDir, 0755); err != nil {
 		return nil, fmt.Errorf("failed to create extension directory: %w", err)
 	}
 
-	// Extract all files from new package
 	for _, file := range zipReader.File {
 		if file.FileInfo().IsDir() {
 			continue
 		}
 
-		// Get relative path within the zip
-		destPath := filepath.Join(extDir, filepath.Base(file.Name))
+		relPath := filepath.Clean(file.Name)
+		if strings.HasPrefix(relPath, "..") || filepath.IsAbs(relPath) {
+			GoLog("[Extension] Skipping unsafe path in archive: %s\n", file.Name)
+			continue
+		}
+		destPath := filepath.Join(extDir, relPath)
+
+		destDir := filepath.Dir(destPath)
+		if err := os.MkdirAll(destDir, 0755); err != nil {
+			return nil, fmt.Errorf("failed to create directory %s: %w", destDir, err)
+		}
 
-		// Create destination file
 		destFile, err := os.Create(destPath)
 		if err != nil {
 			return nil, fmt.Errorf("failed to create file %s: %w", destPath, err)
 		}
 
-		// Copy content
 		srcFile, err := file.Open()
 		if err != nil {
 			destFile.Close()
@@ -634,7 +620,6 @@ func (m *ExtensionManager) UpgradeExtension(filePath string) (*LoadedExtension,
 		}
 	}
 
-	// Create new loaded extension (reusing data directory, preserving enabled state)
 	ext := &LoadedExtension{
 		ID:        newManifest.Name,
 		Manifest:  newManifest,
@@ -683,7 +668,6 @@ func (m *ExtensionManager) checkExtensionUpgradeInternal(filePath string) (*Exte
 	}
 	defer zipReader.Close()
 
-	// Find and read manifest.json
 	var manifestData []byte
 	for _, file := range zipReader.File {
 		name := filepath.Base(file.Name)
@@ -705,13 +689,11 @@ func (m *ExtensionManager) checkExtensionUpgradeInternal(filePath string) (*Exte
 		return nil, fmt.Errorf("manifest.json not found")
 	}
 
-	// Parse manifest
 	newManifest, err := ParseManifest(manifestData)
 	if err != nil {
 		return nil, fmt.Errorf("Invalid manifest: %w", err)
 	}
 
-	// Check if extension exists
 	m.mu.RLock()
 	existing, exists := m.extensions[newManifest.Name]
 	m.mu.RUnlock()
@@ -727,7 +709,6 @@ func (m *ExtensionManager) checkExtensionUpgradeInternal(filePath string) (*Exte
 		info.CurrentVersion = ""
 		info.CanUpgrade = false
 	} else {
-		// Compare versions
 		info.CurrentVersion = existing.Manifest.Version
 		info.CanUpgrade = compareVersions(newManifest.Version, existing.Manifest.Version) > 0
 	}
@@ -780,7 +761,6 @@ func (m *ExtensionManager) GetInstalledExtensionsJSON() (string, error) {
 
 	infos := make([]ExtensionInfo, len(extensions))
 	for i, ext := range extensions {
-		// Build permissions list
 		permissions := []string{}
 		for _, domain := range ext.Manifest.Permissions.Network {
 			permissions = append(permissions, "network:"+domain)
@@ -797,7 +777,6 @@ func (m *ExtensionManager) GetInstalledExtensionsJSON() (string, error) {
 			status = "disabled"
 		}
 
-		// Check for icon file
 		iconPath := ""
 		if ext.Manifest.Icon != "" && ext.SourceDir != "" {
 			possibleIcon := filepath.Join(ext.SourceDir, ext.Manifest.Icon)
@@ -805,7 +784,6 @@ func (m *ExtensionManager) GetInstalledExtensionsJSON() (string, error) {
 				iconPath = possibleIcon
 			}
 		}
-		// Fallback: check for icon.png if not specified in manifest
 		if iconPath == "" && ext.SourceDir != "" {
 			possibleIcon := filepath.Join(ext.SourceDir, "icon.png")
 			if _, err := os.Stat(possibleIcon); err == nil {
@@ -862,13 +840,11 @@ func (m *ExtensionManager) InitializeExtension(extensionID string, settings map[
 		return fmt.Errorf("Extension failed to load. Please reinstall the extension")
 	}
 
-	// Convert settings to JSON for passing to JS
 	settingsJSON, err := json.Marshal(settings)
 	if err != nil {
 		return fmt.Errorf("Failed to save settings")
 	}
 
-	// Call initialize function
 	script := fmt.Sprintf(`
 		(function() {
 			var settings = %s;
@@ -892,7 +868,6 @@ func (m *ExtensionManager) InitializeExtension(extensionID string, settings map[
 		return err
 	}
 
-	// Check result
 	if result != nil && !goja.IsUndefined(result) {
 		exported := result.Export()
 		if resultMap, ok := exported.(map[string]interface{}); ok {
@@ -948,7 +923,6 @@ func (m *ExtensionManager) CleanupExtension(extensionID string) error {
 		return err
 	}
 
-	// Check result
 	if result != nil && !goja.IsUndefined(result) {
 		exported := result.Export()
 		if resultMap, ok := exported.(map[string]interface{}); ok {

go_backend/extension_manifest.go

@@ -29,6 +29,7 @@ const (
 type ExtensionPermissions struct {
 	Network []string `json:"network"` // List of allowed domains
 	Storage bool     `json:"storage"` // Whether extension can use storage API
+	File    bool     `json:"file"`    // Whether extension can use file API
 }
 
 // ExtensionSetting defines a configurable setting for an extension

go_backend/extension_providers.go

@@ -3,10 +3,12 @@ package gobackend
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"path/filepath"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/dop251/goja"
 )
@@ -28,6 +30,14 @@ type ExtTrackMetadata struct {
 	DiscNumber  int    `json:"disc_number,omitempty"`
 	ISRC        string `json:"isrc,omitempty"`
 	ProviderID  string `json:"provider_id"`
+	ItemType    string `json:"item_type,omitempty"`  // track, album, or playlist - for extension search results
+	AlbumType   string `json:"album_type,omitempty"` // album, single, ep, compilation
+	// Enrichment fields from Odesli/song.link
+	TidalID       string            `json:"tidal_id,omitempty"`
+	QobuzID       string            `json:"qobuz_id,omitempty"`
+	DeezerID      string            `json:"deezer_id,omitempty"`
+	SpotifyID     string            `json:"spotify_id,omitempty"`
+	ExternalLinks map[string]string `json:"external_links,omitempty"` // service -> URL mapping
 }
 
 // ResolvedCoverURL returns the cover URL, checking both CoverURL and Images fields
@@ -46,17 +56,21 @@ type ExtAlbumMetadata struct {
 	CoverURL    string             `json:"cover_url,omitempty"`
 	ReleaseDate string             `json:"release_date,omitempty"`
 	TotalTracks int                `json:"total_tracks"`
+	AlbumType   string             `json:"album_type,omitempty"`
 	Tracks      []ExtTrackMetadata `json:"tracks"`
 	ProviderID  string             `json:"provider_id"`
 }
 
 // ExtArtistMetadata represents artist metadata from an extension
 type ExtArtistMetadata struct {
-	ID         string             `json:"id"`
-	Name       string             `json:"name"`
-	ImageURL   string             `json:"image_url,omitempty"`
-	Albums     []ExtAlbumMetadata `json:"albums,omitempty"`
-	ProviderID string             `json:"provider_id"`
+	ID          string             `json:"id"`
+	Name        string             `json:"name"`
+	ImageURL    string             `json:"image_url,omitempty"`
+	HeaderImage string             `json:"header_image,omitempty"` // Header image for artist page background
+	Listeners   int                `json:"listeners,omitempty"`    // Monthly listeners
+	Albums      []ExtAlbumMetadata `json:"albums,omitempty"`
+	TopTracks   []ExtTrackMetadata `json:"top_tracks,omitempty"` // Popular tracks
+	ProviderID  string             `json:"provider_id"`
 }
 
 // ExtSearchResult represents search results from an extension
@@ -140,8 +154,11 @@ func (p *ExtensionProviderWrapper) SearchTracks(query string, limit int) (*ExtSe
 		})()
 	`, query, limit)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("searchTracks timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("searchTracks failed: %w", err)
 	}
 
@@ -157,11 +174,21 @@ func (p *ExtensionProviderWrapper) SearchTracks(query string, limit int) (*ExtSe
 	}
 
 	var searchResult ExtSearchResult
+
+	// Try to parse as ExtSearchResult object first
 	if err := json.Unmarshal(jsonBytes, &searchResult); err != nil {
-		return nil, fmt.Errorf("failed to parse search result: %w", err)
+		// If that fails, try parsing as array of tracks directly
+		var tracks []ExtTrackMetadata
+		if arrErr := json.Unmarshal(jsonBytes, &tracks); arrErr != nil {
+			return nil, fmt.Errorf("failed to parse search result: %w (also tried array: %v)", err, arrErr)
+		}
+		// Wrap array in ExtSearchResult
+		searchResult = ExtSearchResult{
+			Tracks: tracks,
+			Total:  len(tracks),
+		}
 	}
 
-	// Set provider ID on all tracks
 	for i := range searchResult.Tracks {
 		searchResult.Tracks[i].ProviderID = p.extension.ID
 	}
@@ -188,8 +215,11 @@ func (p *ExtensionProviderWrapper) GetTrack(trackID string) (*ExtTrackMetadata,
 		})()
 	`, trackID)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("getTrack timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("getTrack failed: %w", err)
 	}
 
@@ -231,8 +261,11 @@ func (p *ExtensionProviderWrapper) GetAlbum(albumID string) (*ExtAlbumMetadata,
 		})()
 	`, albumID)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("getAlbum timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("getAlbum failed: %w", err)
 	}
 
@@ -277,8 +310,11 @@ func (p *ExtensionProviderWrapper) GetArtist(artistID string) (*ExtArtistMetadat
 		})()
 	`, artistID)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("getArtist timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("getArtist failed: %w", err)
 	}
 
@@ -301,6 +337,72 @@ func (p *ExtensionProviderWrapper) GetArtist(artistID string) (*ExtArtistMetadat
 	return &artist, nil
 }
 
+// EnrichTrack enriches track metadata before download (e.g., fetch real ISRC)
+// This is called lazily when download starts, not when playlist/album is loaded
+// Extension should implement enrichTrack(track) function that returns enriched track
+func (p *ExtensionProviderWrapper) EnrichTrack(track *ExtTrackMetadata) (*ExtTrackMetadata, error) {
+	if !p.extension.Manifest.IsMetadataProvider() {
+		return track, nil // Not a metadata provider, return as-is
+	}
+
+	if !p.extension.Enabled {
+		return track, nil // Extension disabled, return as-is
+	}
+
+	// Convert track to JSON for passing to JS
+	trackJSON, err := json.Marshal(track)
+	if err != nil {
+		GoLog("[Extension] EnrichTrack: failed to marshal track: %v\n", err)
+		return track, nil // Return original on error
+	}
+
+	script := fmt.Sprintf(`
+		(function() {
+			if (typeof extension !== 'undefined' && typeof extension.enrichTrack === 'function') {
+				var track = %s;
+				return extension.enrichTrack(track);
+			}
+			return null;
+		})()
+	`, string(trackJSON))
+
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
+	if err != nil {
+		if IsTimeoutError(err) {
+			GoLog("[Extension] EnrichTrack timeout for %s\n", p.extension.ID)
+		} else {
+			GoLog("[Extension] EnrichTrack error for %s: %v\n", p.extension.ID, err)
+		}
+		return track, nil // Return original on error
+	}
+
+	// If extension doesn't implement enrichTrack or returns null, return original
+	if result == nil || goja.IsUndefined(result) || goja.IsNull(result) {
+		return track, nil
+	}
+
+	exported := result.Export()
+	jsonBytes, err := json.Marshal(exported)
+	if err != nil {
+		GoLog("[Extension] EnrichTrack: failed to marshal result: %v\n", err)
+		return track, nil
+	}
+
+	var enrichedTrack ExtTrackMetadata
+	if err := json.Unmarshal(jsonBytes, &enrichedTrack); err != nil {
+		GoLog("[Extension] EnrichTrack: failed to parse enriched track: %v\n", err)
+		return track, nil
+	}
+
+	// Preserve provider ID
+	enrichedTrack.ProviderID = track.ProviderID
+
+	GoLog("[Extension] EnrichTrack: enriched track from %s (ISRC: %s -> %s)\n",
+		p.extension.ID, track.ISRC, enrichedTrack.ISRC)
+
+	return &enrichedTrack, nil
+}
+
 // ==================== Download Provider Methods ====================
 
 // CheckAvailability checks if a track is available for download
@@ -322,8 +424,11 @@ func (p *ExtensionProviderWrapper) CheckAvailability(isrc, trackName, artistName
 		})()
 	`, isrc, trackName, artistName)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("checkAvailability timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("checkAvailability failed: %w", err)
 	}
 
@@ -364,8 +469,11 @@ func (p *ExtensionProviderWrapper) GetDownloadURL(trackID, quality string) (*Ext
 		})()
 	`, trackID, quality)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("getDownloadUrl timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("getDownloadUrl failed: %w", err)
 	}
 
@@ -387,6 +495,9 @@ func (p *ExtensionProviderWrapper) GetDownloadURL(trackID, quality string) (*Ext
 	return &urlResult, nil
 }
 
+// ExtDownloadTimeout is longer for extension download operations (5 minutes)
+const ExtDownloadTimeout = 5 * time.Minute
+
 // Download downloads a track with progress reporting
 func (p *ExtensionProviderWrapper) Download(trackID, quality, outputPath string, onProgress func(percent int)) (*ExtDownloadResult, error) {
 	if !p.extension.Manifest.IsDownloadProvider() {
@@ -424,12 +535,19 @@ func (p *ExtensionProviderWrapper) Download(trackID, quality, outputPath string,
 		})()
 	`, trackID, quality, outputPath)
 
-	result, err := p.vm.RunString(script)
+	// Use longer timeout for downloads (5 minutes)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, ExtDownloadTimeout)
 	if err != nil {
+		errMsg := err.Error()
+		errType := "script_error"
+		if IsTimeoutError(err) {
+			errMsg = "download timeout: extension took too long to complete"
+			errType = "timeout"
+		}
 		return &ExtDownloadResult{
 			Success:      false,
-			ErrorMessage: err.Error(),
-			ErrorType:    "script_error",
+			ErrorMessage: errMsg,
+			ErrorType:    errType,
 		}, nil
 	}
 
@@ -595,13 +713,61 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 	var lastErr error
 	var skipBuiltIn bool // If source extension has skipBuiltInFallback, don't try built-in providers
 
+	// LAZY ENRICHMENT: If track came from an extension, try to enrich metadata (e.g., get real ISRC)
+	// This is done lazily at download time, not when playlist/album is loaded
+	if req.Source != "" && !isBuiltInProvider(req.Source) {
+		ext, err := extManager.GetExtension(req.Source)
+		if err == nil && ext.Enabled && ext.Error == "" && ext.Manifest.IsMetadataProvider() {
+			GoLog("[DownloadWithExtensionFallback] Enriching track from extension '%s'...\n", req.Source)
+
+			provider := NewExtensionProviderWrapper(ext)
+			trackMeta := &ExtTrackMetadata{
+				ID:          req.SpotifyID,
+				Name:        req.TrackName,
+				Artists:     req.ArtistName,
+				AlbumName:   req.AlbumName,
+				DurationMS:  req.DurationMS,
+				ISRC:        req.ISRC,
+				ReleaseDate: req.ReleaseDate,
+				TrackNumber: req.TrackNumber,
+				DiscNumber:  req.DiscNumber,
+				ProviderID:  req.Source,
+			}
+
+			enrichedTrack, err := provider.EnrichTrack(trackMeta)
+			if err == nil && enrichedTrack != nil {
+				if enrichedTrack.ISRC != "" && enrichedTrack.ISRC != req.ISRC {
+					GoLog("[DownloadWithExtensionFallback] ISRC enriched: %s -> %s\n", req.ISRC, enrichedTrack.ISRC)
+					req.ISRC = enrichedTrack.ISRC
+				}
+				if enrichedTrack.TidalID != "" {
+					GoLog("[DownloadWithExtensionFallback] Tidal ID from Odesli: %s\n", enrichedTrack.TidalID)
+					req.TidalID = enrichedTrack.TidalID
+				}
+				if enrichedTrack.QobuzID != "" {
+					GoLog("[DownloadWithExtensionFallback] Qobuz ID from Odesli: %s\n", enrichedTrack.QobuzID)
+					req.QobuzID = enrichedTrack.QobuzID
+				}
+				if enrichedTrack.DeezerID != "" {
+					GoLog("[DownloadWithExtensionFallback] Deezer ID from Odesli: %s\n", enrichedTrack.DeezerID)
+					req.DeezerID = enrichedTrack.DeezerID
+				}
+				if enrichedTrack.Name != "" {
+					req.TrackName = enrichedTrack.Name
+				}
+				if enrichedTrack.Artists != "" {
+					req.ArtistName = enrichedTrack.Artists
+				}
+			}
+		}
+	}
+
 	// If source extension is specified, try it first before the priority list
 	if req.Source != "" && !isBuiltInProvider(req.Source) {
 		GoLog("[DownloadWithExtensionFallback] Track source is extension '%s', trying it first\n", req.Source)
 
 		ext, err := extManager.GetExtension(req.Source)
 		if err == nil && ext.Enabled && ext.Error == "" && ext.Manifest.IsDownloadProvider() {
-			// Check if this extension wants to skip built-in fallback
 			skipBuiltIn = ext.Manifest.SkipBuiltInFallback
 
 			provider := NewExtensionProviderWrapper(ext)
@@ -612,7 +778,6 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 
 			GoLog("[DownloadWithExtensionFallback] Downloading from source extension with trackID: %s (skipBuiltInFallback: %v)\n", trackID, skipBuiltIn)
 
-			// Build output path
 			outputPath := buildOutputPath(req)
 
 			// Download directly using the track ID from the extension
@@ -668,6 +833,14 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 			}
 
 			if err != nil {
+				if errors.Is(err, ErrDownloadCancelled) {
+					return &DownloadResponse{
+						Success:   false,
+						Error:     "Download cancelled",
+						ErrorType: "cancelled",
+						Service:   req.Source,
+					}, nil
+				}
 				lastErr = err
 			} else if result.ErrorMessage != "" {
 				lastErr = fmt.Errorf("%s", result.ErrorMessage)
@@ -712,6 +885,14 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 				return result, nil
 			}
 			if err != nil {
+				if errors.Is(err, ErrDownloadCancelled) {
+					return &DownloadResponse{
+						Success:   false,
+						Error:     "Download cancelled",
+						ErrorType: "cancelled",
+						Service:   providerID,
+					}, nil
+				}
 				lastErr = err
 				GoLog("[DownloadWithExtensionFallback] %s failed: %v\n", providerID, err)
 			}
@@ -729,7 +910,6 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 
 			provider := NewExtensionProviderWrapper(ext)
 
-			// Check availability first
 			availability, err := provider.CheckAvailability(req.ISRC, req.TrackName, req.ArtistName)
 			if err != nil || !availability.Available {
 				GoLog("[DownloadWithExtensionFallback] %s: not available\n", providerID)
@@ -739,12 +919,9 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 				continue
 			}
 
-			// Build output path
 			outputPath := buildOutputPath(req)
 
-			// Download
 			result, err := provider.Download(availability.TrackID, req.Quality, outputPath, func(percent int) {
-				// Update progress
 				if req.ItemID != "" {
 					SetItemProgress(req.ItemID, float64(percent), 0, 0)
 				}
@@ -797,6 +974,14 @@ func DownloadWithExtensionFallback(req DownloadRequest) (*DownloadResponse, erro
 			}
 
 			if err != nil {
+				if errors.Is(err, ErrDownloadCancelled) {
+					return &DownloadResponse{
+						Success:   false,
+						Error:     "Download cancelled",
+						ErrorType: "cancelled",
+						Service:   providerID,
+					}, nil
+				}
 				lastErr = err
 			} else if result.ErrorMessage != "" {
 				lastErr = fmt.Errorf("%s", result.ErrorMessage)
@@ -947,8 +1132,11 @@ func (p *ExtensionProviderWrapper) CustomSearch(query string, options map[string
 		})()
 	`, query, string(optionsJSON))
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("customSearch timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("customSearch failed: %w", err)
 	}
 
@@ -973,7 +1161,6 @@ func (p *ExtensionProviderWrapper) CustomSearch(query string, options map[string
 		tracks = []ExtTrackMetadata{}
 	}
 
-	// Set provider ID on all tracks
 	for i := range tracks {
 		tracks[i].ProviderID = p.extension.ID
 	}
@@ -1013,8 +1200,11 @@ func (p *ExtensionProviderWrapper) HandleURL(url string) (*ExtURLHandleResult, e
 		})()
 	`, url)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("handleUrl timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("handleUrl failed: %w", err)
 	}
 
@@ -1040,6 +1230,24 @@ func (p *ExtensionProviderWrapper) HandleURL(url string) (*ExtURLHandleResult, e
 	for i := range handleResult.Tracks {
 		handleResult.Tracks[i].ProviderID = p.extension.ID
 	}
+	if handleResult.Album != nil {
+		handleResult.Album.ProviderID = p.extension.ID
+		for i := range handleResult.Album.Tracks {
+			handleResult.Album.Tracks[i].ProviderID = p.extension.ID
+		}
+	}
+	if handleResult.Artist != nil {
+		handleResult.Artist.ProviderID = p.extension.ID
+		for i := range handleResult.Artist.Albums {
+			handleResult.Artist.Albums[i].ProviderID = p.extension.ID
+			for j := range handleResult.Artist.Albums[i].Tracks {
+				handleResult.Artist.Albums[i].Tracks[j].ProviderID = p.extension.ID
+			}
+		}
+		for i := range handleResult.Artist.TopTracks {
+			handleResult.Artist.TopTracks[i].ProviderID = p.extension.ID
+		}
+	}
 
 	return &handleResult, nil
 }
@@ -1076,8 +1284,11 @@ func (p *ExtensionProviderWrapper) MatchTrack(sourceTrack map[string]interface{}
 		})()
 	`, string(sourceJSON), string(candidatesJSON))
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, DefaultJSTimeout)
 	if err != nil {
+		if IsTimeoutError(err) {
+			return nil, fmt.Errorf("matchTrack timeout: extension took too long to respond")
+		}
 		return nil, fmt.Errorf("matchTrack failed: %w", err)
 	}
 
@@ -1111,6 +1322,9 @@ type PostProcessResult struct {
 	SampleRate int `json:"sample_rate,omitempty"`
 }
 
+// PostProcessTimeout is longer for post-processing (2 minutes)
+const PostProcessTimeout = 2 * time.Minute
+
 // PostProcess runs post-processing hooks on a downloaded file
 func (p *ExtensionProviderWrapper) PostProcess(filePath string, metadata map[string]interface{}, hookID string) (*PostProcessResult, error) {
 	if !p.extension.Manifest.HasPostProcessing() {
@@ -1132,11 +1346,15 @@ func (p *ExtensionProviderWrapper) PostProcess(filePath string, metadata map[str
 		})()
 	`, filePath, string(metadataJSON), hookID)
 
-	result, err := p.vm.RunString(script)
+	result, err := RunWithTimeoutAndRecover(p.vm, script, PostProcessTimeout)
 	if err != nil {
+		errMsg := err.Error()
+		if IsTimeoutError(err) {
+			errMsg = "postProcess timeout: extension took too long to complete"
+		}
 		return &PostProcessResult{
 			Success: false,
-			Error:   err.Error(),
+			Error:   errMsg,
 		}, nil
 	}
 
@@ -1263,12 +1481,10 @@ func (m *ExtensionManager) RunPostProcessing(filePath string, metadata map[strin
 	for _, provider := range providers {
 		hooks := provider.extension.Manifest.GetPostProcessingHooks()
 		for _, hook := range hooks {
-			// Check if hook is enabled (TODO: check user settings)
 			if !hook.DefaultEnabled {
 				continue
 			}
 
-			// Check if format is supported
 			ext := strings.ToLower(filepath.Ext(currentPath))
 			if len(hook.SupportedFormats) > 0 {
 				supported := false

go_backend/extension_runtime.go

@@ -10,7 +10,8 @@ import (
 	"github.com/dop251/goja"
 )
 
-// Global auth state for extensions (stores pending auth codes)
+const DefaultJSTimeout = 30 * time.Second
+
 var (
 	extensionAuthState   = make(map[string]*ExtensionAuthState)
 	extensionAuthStateMu sync.RWMutex
@@ -36,7 +37,6 @@ type PendingAuthRequest struct {
 	CallbackURL string
 }
 
-// Global pending auth requests (Flutter polls this)
 var (
 	pendingAuthRequests   = make(map[string]*PendingAuthRequest)
 	pendingAuthRequestsMu sync.RWMutex
@@ -49,7 +49,6 @@ func GetPendingAuthRequest(extensionID string) *PendingAuthRequest {
 	return pendingAuthRequests[extensionID]
 }
 
-// ClearPendingAuthRequest clears pending auth request (called from Flutter after opening URL)
 func ClearPendingAuthRequest(extensionID string) {
 	pendingAuthRequestsMu.Lock()
 	defer pendingAuthRequestsMu.Unlock()
@@ -98,23 +97,90 @@ type ExtensionRuntime struct {
 
 // NewExtensionRuntime creates a new runtime for an extension
 func NewExtensionRuntime(ext *LoadedExtension) *ExtensionRuntime {
-	// Create a cookie jar for this extension
 	jar, _ := newSimpleCookieJar()
 
-	client := &http.Client{
-		Timeout: 30 * time.Second,
-		Jar:     jar,
-	}
-
-	return &ExtensionRuntime{
+	runtime := &ExtensionRuntime{
 		extensionID: ext.ID,
 		manifest:    ext.Manifest,
 		settings:    make(map[string]interface{}),
-		httpClient:  client,
 		cookieJar:   jar,
 		dataDir:     ext.DataDir,
 		vm:          ext.VM,
 	}
+
+	// Create HTTP client with redirect validation to prevent SSRF via open redirect
+	client := &http.Client{
+		Timeout: 30 * time.Second,
+		Jar:     jar,
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			// Validate redirect target domain against allowed domains
+			domain := req.URL.Hostname()
+			if !ext.Manifest.IsDomainAllowed(domain) {
+				GoLog("[Extension:%s] Redirect blocked: domain '%s' not in allowed list\n", ext.ID, domain)
+				return &RedirectBlockedError{Domain: domain}
+			}
+			// Also block redirects to private/local networks (SSRF protection)
+			if isPrivateIP(domain) {
+				GoLog("[Extension:%s] Redirect blocked: private IP '%s'\n", ext.ID, domain)
+				return &RedirectBlockedError{Domain: domain, IsPrivate: true}
+			}
+			// Default redirect limit (10)
+			if len(via) >= 10 {
+				return http.ErrUseLastResponse
+			}
+			return nil
+		},
+	}
+	runtime.httpClient = client
+
+	return runtime
+}
+
+// RedirectBlockedError is returned when a redirect is blocked due to domain validation
+type RedirectBlockedError struct {
+	Domain    string
+	IsPrivate bool
+}
+
+func (e *RedirectBlockedError) Error() string {
+	if e.IsPrivate {
+		return "redirect blocked: private/local network access denied"
+	}
+	return "redirect blocked: domain '" + e.Domain + "' not in allowed list"
+}
+
+// isPrivateIP checks if a hostname resolves to a private/local IP address
+func isPrivateIP(host string) bool {
+	// Block common private network patterns
+	// This is a simple check - for production, consider DNS resolution
+	privatePatterns := []string{
+		"localhost",
+		"127.",
+		"10.",
+		"172.16.", "172.17.", "172.18.", "172.19.",
+		"172.20.", "172.21.", "172.22.", "172.23.",
+		"172.24.", "172.25.", "172.26.", "172.27.",
+		"172.28.", "172.29.", "172.30.", "172.31.",
+		"192.168.",
+		"169.254.", // Link-local
+		"::1",      // IPv6 localhost
+		"fc00:",    // IPv6 private
+		"fe80:",    // IPv6 link-local
+	}
+
+	hostLower := host
+	for _, pattern := range privatePatterns {
+		if hostLower == pattern || len(hostLower) > len(pattern) && hostLower[:len(pattern)] == pattern {
+			return true
+		}
+	}
+
+	// Also block .local domains
+	if len(host) > 6 && host[len(host)-6:] == ".local" {
+		return true
+	}
+
+	return false
 }
 
 // simpleCookieJar is a simple in-memory cookie jar

go_backend/extension_runtime_file.go

@@ -8,25 +8,81 @@ import (
 	"os"
 	"path/filepath"
 	"strings"
+	"sync"
 
 	"github.com/dop251/goja"
 )
 
 // ==================== File API (Sandboxed) ====================
 
-// validatePath checks if the path is within the extension's data directory
-// For absolute paths (from download queue), it allows them if they're valid
+// List of allowed directories for file operations (set by Go backend for download operations)
+var (
+	allowedDownloadDirs   []string
+	allowedDownloadDirsMu sync.RWMutex
+)
+
+// SetAllowedDownloadDirs sets the list of directories where extensions can write files
+// This should be called by the Go backend when setting up download paths
+func SetAllowedDownloadDirs(dirs []string) {
+	allowedDownloadDirsMu.Lock()
+	defer allowedDownloadDirsMu.Unlock()
+	allowedDownloadDirs = dirs
+	GoLog("[Extension] Allowed download directories set: %v\n", dirs)
+}
+
+// AddAllowedDownloadDir adds a directory to the allowed list
+func AddAllowedDownloadDir(dir string) {
+	allowedDownloadDirsMu.Lock()
+	defer allowedDownloadDirsMu.Unlock()
+	absDir, err := filepath.Abs(dir)
+	if err == nil {
+		allowedDownloadDirs = append(allowedDownloadDirs, absDir)
+	}
+}
+
+// isPathInAllowedDirs checks if an absolute path is within any allowed directory
+func isPathInAllowedDirs(absPath string) bool {
+	allowedDownloadDirsMu.RLock()
+	defer allowedDownloadDirsMu.RUnlock()
+
+	for _, allowedDir := range allowedDownloadDirs {
+		if strings.HasPrefix(absPath, allowedDir) {
+			return true
+		}
+	}
+	return false
+}
+
+// validatePath checks if the path is within the extension's sandbox
+// Security: Absolute paths are BLOCKED unless they're in allowed download directories
+// Extensions should use relative paths for their own data storage
 func (r *ExtensionRuntime) validatePath(path string) (string, error) {
+	// Check if extension has file permission
+	if !r.manifest.Permissions.File {
+		return "", fmt.Errorf("file access denied: extension does not have 'file' permission")
+	}
+
 	// Clean and resolve the path
 	cleanPath := filepath.Clean(path)
 
-	// If path is absolute, allow it (for download queue paths)
-	// This is safe because the Go backend controls what paths are passed
+	// SECURITY: Block absolute paths by default
+	// Only allow if path is in explicitly allowed download directories
 	if filepath.IsAbs(cleanPath) {
-		return cleanPath, nil
+		absPath, err := filepath.Abs(cleanPath)
+		if err != nil {
+			return "", fmt.Errorf("invalid path: %w", err)
+		}
+
+		// Check if path is in allowed download directories
+		if isPathInAllowedDirs(absPath) {
+			return absPath, nil
+		}
+
+		// Block all other absolute paths
+		return "", fmt.Errorf("file access denied: absolute paths are not allowed. Use relative paths within extension sandbox")
 	}
 
-	// For relative paths, join with data directory
+	// For relative paths, join with data directory (extension's sandbox)
 	fullPath := filepath.Join(r.dataDir, cleanPath)
 
 	// Resolve to absolute path
@@ -35,7 +91,7 @@ func (r *ExtensionRuntime) validatePath(path string) (string, error) {
 		return "", fmt.Errorf("invalid path: %w", err)
 	}
 
-	// Ensure path is within data directory
+	// Ensure path is within data directory (prevent path traversal)
 	absDataDir, _ := filepath.Abs(r.dataDir)
 	if !strings.HasPrefix(absPath, absDataDir) {
 		return "", fmt.Errorf("file access denied: path '%s' is outside sandbox", path)

go_backend/extension_runtime_http.go

@@ -29,6 +29,12 @@ func (r *ExtensionRuntime) validateDomain(urlStr string) error {
 	}
 
 	domain := parsed.Hostname()
+
+	// Block private/local network access (SSRF protection)
+	if isPrivateIP(domain) {
+		return fmt.Errorf("network access denied: private/local network '%s' not allowed", domain)
+	}
+
 	if !r.manifest.IsDomainAllowed(domain) {
 		return fmt.Errorf("network access denied: domain '%s' not in allowed list", domain)
 	}

go_backend/extension_runtime_storage.go

@@ -134,12 +134,48 @@ func (r *ExtensionRuntime) getCredentialsPath() string {
 	return filepath.Join(r.dataDir, ".credentials.enc")
 }
 
-// getEncryptionKey derives an encryption key from extension ID
-func (r *ExtensionRuntime) getEncryptionKey() []byte {
-	// Use SHA256 of extension ID + salt as encryption key
-	salt := "spotiflac-ext-cred-v1"
-	hash := sha256.Sum256([]byte(r.extensionID + salt))
-	return hash[:]
+// getSaltPath returns the path to the extension's encryption salt file
+func (r *ExtensionRuntime) getSaltPath() string {
+	return filepath.Join(r.dataDir, ".cred_salt")
+}
+
+// getOrCreateSalt gets existing salt or creates a new random one
+func (r *ExtensionRuntime) getOrCreateSalt() ([]byte, error) {
+	saltPath := r.getSaltPath()
+
+	// Try to read existing salt
+	salt, err := os.ReadFile(saltPath)
+	if err == nil && len(salt) == 32 {
+		return salt, nil
+	}
+
+	// Generate new random salt (32 bytes)
+	salt = make([]byte, 32)
+	if _, err := io.ReadFull(rand.Reader, salt); err != nil {
+		return nil, fmt.Errorf("failed to generate salt: %w", err)
+	}
+
+	// Save salt to file
+	if err := os.WriteFile(saltPath, salt, 0600); err != nil {
+		return nil, fmt.Errorf("failed to save salt: %w", err)
+	}
+
+	return salt, nil
+}
+
+// getEncryptionKey derives an encryption key from extension ID + random salt
+func (r *ExtensionRuntime) getEncryptionKey() ([]byte, error) {
+	// Get or create per-installation random salt
+	salt, err := r.getOrCreateSalt()
+	if err != nil {
+		return nil, err
+	}
+
+	// Combine extension ID + random salt for key derivation
+	// This makes each installation unique, preventing mass decryption attacks
+	combined := append([]byte(r.extensionID), salt...)
+	hash := sha256.Sum256(combined)
+	return hash[:], nil
 }
 
 // loadCredentials loads and decrypts credentials from disk
@@ -154,7 +190,10 @@ func (r *ExtensionRuntime) loadCredentials() (map[string]interface{}, error) {
 	}
 
 	// Decrypt the data
-	key := r.getEncryptionKey()
+	key, err := r.getEncryptionKey()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get encryption key: %w", err)
+	}
 	decrypted, err := decryptAES(data, key)
 	if err != nil {
 		return nil, fmt.Errorf("failed to decrypt credentials: %w", err)
@@ -176,7 +215,10 @@ func (r *ExtensionRuntime) saveCredentials(creds map[string]interface{}) error {
 	}
 
 	// Encrypt the data
-	key := r.getEncryptionKey()
+	key, err := r.getEncryptionKey()
+	if err != nil {
+		return fmt.Errorf("failed to get encryption key: %w", err)
+	}
 	encrypted, err := encryptAES(data, key)
 	if err != nil {
 		return fmt.Errorf("failed to encrypt credentials: %w", err)

go_backend/extension_test.go

@@ -1,6 +1,7 @@
 package gobackend
 
 import (
+	"path/filepath"
 	"testing"
 
 	"github.com/dop251/goja"
@@ -137,6 +138,9 @@ func TestExtensionRuntime_FileSandbox(t *testing.T) {
 		ID: "test-ext",
 		Manifest: &ExtensionManifest{
 			Name: "test-ext",
+			Permissions: ExtensionPermissions{
+				File: true, // Enable file permission for test
+			},
 		},
 		DataDir: tempDir,
 	}
@@ -166,6 +170,36 @@ func TestExtensionRuntime_FileSandbox(t *testing.T) {
 	if nestedPath == "" {
 		t.Error("Expected non-empty nested path")
 	}
+
+	// Test absolute path should be blocked (security fix)
+	// Use platform-appropriate absolute path
+	var absPath string
+	if filepath.IsAbs("C:\\Windows\\System32") {
+		absPath = "C:\\Windows\\System32\\test.txt" // Windows
+	} else {
+		absPath = "/etc/passwd" // Unix
+	}
+	_, err = runtime.validatePath(absPath)
+	if err == nil {
+		t.Error("Expected absolute path to be blocked")
+	}
+
+	// Test that extension without file permission is blocked
+	extNoFile := &LoadedExtension{
+		ID: "test-ext-no-file",
+		Manifest: &ExtensionManifest{
+			Name: "test-ext-no-file",
+			Permissions: ExtensionPermissions{
+				File: false, // No file permission
+			},
+		},
+		DataDir: tempDir,
+	}
+	runtimeNoFile := NewExtensionRuntime(extNoFile)
+	_, err = runtimeNoFile.validatePath("test.txt")
+	if err == nil {
+		t.Error("Expected file access to be denied without file permission")
+	}
 }
 
 func TestExtensionRuntime_UtilityFunctions(t *testing.T) {
@@ -217,3 +251,79 @@ func TestExtensionRuntime_UtilityFunctions(t *testing.T) {
 		t.Error("Expected non-empty JSON string")
 	}
 }
+
+func TestExtensionRuntime_SSRFProtection(t *testing.T) {
+	// Create extension with limited network permissions
+	ext := &LoadedExtension{
+		ID: "test-ext",
+		Manifest: &ExtensionManifest{
+			Name: "test-ext",
+			Permissions: ExtensionPermissions{
+				Network: []string{"api.example.com"},
+			},
+		},
+		DataDir: t.TempDir(),
+	}
+
+	runtime := NewExtensionRuntime(ext)
+
+	// Test that private IPs are blocked (SSRF protection)
+	privateIPs := []string{
+		"http://localhost/admin",
+		"http://127.0.0.1/admin",
+		"http://192.168.1.1/admin",
+		"http://10.0.0.1/admin",
+		"http://172.16.0.1/admin",
+		"http://169.254.169.254/latest/meta-data/", // AWS metadata
+		"http://router.local/admin",
+	}
+
+	for _, url := range privateIPs {
+		err := runtime.validateDomain(url)
+		if err == nil {
+			t.Errorf("Expected private IP/host '%s' to be blocked", url)
+		}
+	}
+
+	// Test that allowed public domain still works
+	if err := runtime.validateDomain("https://api.example.com/path"); err != nil {
+		t.Errorf("Expected api.example.com to be allowed, got error: %v", err)
+	}
+}
+
+func TestIsPrivateIP(t *testing.T) {
+	tests := []struct {
+		host     string
+		expected bool
+	}{
+		// Private IPs should be blocked
+		{"localhost", true},
+		{"127.0.0.1", true},
+		{"127.0.0.2", true},
+		{"10.0.0.1", true},
+		{"10.255.255.255", true},
+		{"172.16.0.1", true},
+		{"172.31.255.255", true},
+		{"192.168.0.1", true},
+		{"192.168.255.255", true},
+		{"169.254.169.254", true}, // AWS metadata
+		{"router.local", true},
+		{"mydevice.local", true},
+
+		// Public IPs should be allowed
+		{"8.8.8.8", false},
+		{"1.1.1.1", false},
+		{"api.example.com", false},
+		{"google.com", false},
+		{"172.15.0.1", false},  // Just outside 172.16-31 range
+		{"172.32.0.1", false},  // Just outside 172.16-31 range
+		{"192.167.0.1", false}, // Not 192.168.x.x
+	}
+
+	for _, tt := range tests {
+		result := isPrivateIP(tt.host)
+		if result != tt.expected {
+			t.Errorf("isPrivateIP(%s) = %v, expected %v", tt.host, result, tt.expected)
+		}
+	}
+}

go_backend/extension_timeout.go

@@ -0,0 +1,118 @@
+// Package gobackend provides timeout execution for extension JS code
+package gobackend
+
+import (
+	"context"
+	"fmt"
+	"sync"
+	"time"
+
+	"github.com/dop251/goja"
+)
+
+// JSExecutionError represents an error during JS execution
+type JSExecutionError struct {
+	Message   string
+	IsTimeout bool
+}
+
+func (e *JSExecutionError) Error() string {
+	return e.Message
+}
+
+// RunWithTimeout executes JavaScript code with a timeout
+// Returns the result value and any error (including timeout)
+func RunWithTimeout(vm *goja.Runtime, script string, timeout time.Duration) (goja.Value, error) {
+	if timeout <= 0 {
+		timeout = DefaultJSTimeout
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), timeout)
+	defer cancel()
+
+	// Channel to receive result
+	type result struct {
+		value goja.Value
+		err   error
+	}
+	resultCh := make(chan result, 1)
+
+	// Track if we've interrupted
+	var interrupted bool
+	var interruptMu sync.Mutex
+
+	// Run script in goroutine
+	go func() {
+		defer func() {
+			if r := recover(); r != nil {
+				// Check if this was our interrupt
+				interruptMu.Lock()
+				wasInterrupted := interrupted
+				interruptMu.Unlock()
+
+				if wasInterrupted {
+					resultCh <- result{nil, &JSExecutionError{
+						Message:   "execution timeout exceeded",
+						IsTimeout: true,
+					}}
+				} else {
+					resultCh <- result{nil, fmt.Errorf("panic during execution: %v", r)}
+				}
+			}
+		}()
+
+		val, err := vm.RunString(script)
+		resultCh <- result{val, err}
+	}()
+
+	// Wait for result or timeout
+	select {
+	case res := <-resultCh:
+		return res.value, res.err
+	case <-ctx.Done():
+		// Timeout - interrupt the VM
+		interruptMu.Lock()
+		interrupted = true
+		interruptMu.Unlock()
+
+		vm.Interrupt("execution timeout")
+
+		// Wait a bit for the goroutine to finish
+		select {
+		case res := <-resultCh:
+			// If we got a result after interrupt, it might be the timeout error
+			if res.err != nil {
+				return nil, res.err
+			}
+			return nil, &JSExecutionError{
+				Message:   "execution timeout exceeded",
+				IsTimeout: true,
+			}
+		case <-time.After(1 * time.Second):
+			// Force return timeout error
+			return nil, &JSExecutionError{
+				Message:   "execution timeout exceeded (force)",
+				IsTimeout: true,
+			}
+		}
+	}
+}
+
+// RunWithTimeoutAndRecover runs JS with timeout and clears interrupt state after
+// This should be used when you want to continue using the VM after a timeout
+func RunWithTimeoutAndRecover(vm *goja.Runtime, script string, timeout time.Duration) (goja.Value, error) {
+	result, err := RunWithTimeout(vm, script, timeout)
+
+	// Clear any interrupt state so VM can be reused
+	vm.ClearInterrupt()
+
+	return result, err
+}
+
+// IsTimeoutError checks if an error is a timeout error
+func IsTimeoutError(err error) bool {
+	if jsErr, ok := err.(*JSExecutionError); ok {
+		return jsErr.IsTimeout
+	}
+	return false
+}

go_backend/filename.go

@@ -11,23 +11,18 @@ var invalidChars = regexp.MustCompile(`[<>:"/\\|?*\x00-\x1f]`)
 
 // sanitizeFilename removes invalid characters from filename
 func sanitizeFilename(filename string) string {
-	// Replace invalid characters with underscore
 	sanitized := invalidChars.ReplaceAllString(filename, "_")
 	
-	// Remove leading/trailing spaces and dots
 	sanitized = strings.TrimSpace(sanitized)
 	sanitized = strings.Trim(sanitized, ".")
 	
-	// Collapse multiple underscores
 	multiUnderscore := regexp.MustCompile(`_+`)
 	sanitized = multiUnderscore.ReplaceAllString(sanitized, "_")
 	
-	// Limit length (Android has 255 byte limit for filenames)
 	if len(sanitized) > 200 {
 		sanitized = sanitized[:200]
 	}
 	
-	// Ensure not empty
 	if sanitized == "" {
 		sanitized = "untitled"
 	}
@@ -43,7 +38,6 @@ func buildFilenameFromTemplate(template string, metadata map[string]interface{})
 	
 	result := template
 	
-	// Replace placeholders
 	placeholders := map[string]string{
 		"{title}":  getString(metadata, "title"),
 		"{artist}": getString(metadata, "artist"),
@@ -63,7 +57,6 @@ func buildFilenameFromTemplate(template string, metadata map[string]interface{})
 func getString(m map[string]interface{}, key string) string {
 	if v, ok := m[key]; ok {
 		if s, ok := v.(string); ok {
-			// Trim leading/trailing whitespace to prevent filename issues
 			return strings.TrimSpace(s)
 		}
 	}

go_backend/httputil.go

@@ -20,13 +20,11 @@ import (
 // getRandomUserAgent generates a random Windows Chrome User-Agent string
 // Uses same format as PC version (referensi/backend/spotify_metadata.go) for better API compatibility
 func getRandomUserAgent() string {
-	// Windows 10/11 Chrome format - same as PC version for maximum compatibility
-	// Some APIs may block mobile User-Agents, so we use desktop format
-	winMajor := rand.Intn(2) + 10 // Windows 10 or 11
+	winMajor := rand.Intn(2) + 10
 
-	chromeVersion := rand.Intn(25) + 100  // Chrome 100-124
-	chromeBuild := rand.Intn(1500) + 3000 // Build 3000-4500
-	chromePatch := rand.Intn(65) + 60     // Patch 60-125
+	chromeVersion := rand.Intn(25) + 100
+	chromeBuild := rand.Intn(1500) + 3000
+	chromePatch := rand.Intn(65) + 60
 
 	return fmt.Sprintf(
 		"Mozilla/5.0 (Windows NT %d.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/%d.0.%d.%d Safari/537.36",
@@ -39,7 +37,6 @@ func getRandomUserAgent() string {
 
 // getRandomMacUserAgent generates a random Mac Chrome User-Agent string
 // Alternative format matching referensi/backend/spotify_metadata.go exactly
-// Kept for potential future use
 // func getRandomMacUserAgent() string {
 // 	macMajor := rand.Intn(4) + 11 // macOS 11-14
 // 	macMinor := rand.Intn(5) + 4  // Minor 4-8
@@ -66,7 +63,6 @@ func getRandomUserAgent() string {
 // }
 
 // getRandomDesktopUserAgent randomly picks between Windows and Mac User-Agent
-// Kept for potential future use
 // func getRandomDesktopUserAgent() string {
 // 	if rand.Intn(2) == 0 {
 // 		return getRandomUserAgent() // Windows
@@ -74,17 +70,15 @@ func getRandomUserAgent() string {
 // 	return getRandomMacUserAgent() // Mac
 // }
 
-// Default timeout values
 const (
-	DefaultTimeout    = 60 * time.Second  // Default HTTP timeout
-	DownloadTimeout   = 120 * time.Second // Timeout for file downloads
-	SongLinkTimeout   = 30 * time.Second  // Timeout for SongLink API
-	DefaultMaxRetries = 3                 // Default retry count
-	DefaultRetryDelay = 1 * time.Second   // Initial retry delay
+	DefaultTimeout    = 60 * time.Second
+	DownloadTimeout   = 120 * time.Second
+	SongLinkTimeout   = 30 * time.Second
+	DefaultMaxRetries = 3
+	DefaultRetryDelay = 1 * time.Second
 )
 
 // Shared transport with connection pooling to prevent TCP exhaustion
-// Optimized for large file downloads (FLAC ~30-50MB)
 var sharedTransport = &http.Transport{
 	DialContext: (&net.Dialer{
 		Timeout:   30 * time.Second,
@@ -96,27 +90,24 @@ var sharedTransport = &http.Transport{
 	IdleConnTimeout:       90 * time.Second,
 	TLSHandshakeTimeout:   10 * time.Second,
 	ExpectContinueTimeout: 1 * time.Second,
-	DisableKeepAlives:     false, // Enable keep-alives for connection reuse
+	DisableKeepAlives:     false,
 	ForceAttemptHTTP2:     true,
-	WriteBufferSize:       64 * 1024, // 64KB write buffer
-	ReadBufferSize:        64 * 1024, // 64KB read buffer
-	DisableCompression:    true,      // FLAC is already compressed
+	WriteBufferSize:       64 * 1024,
+	ReadBufferSize:        64 * 1024,
+	DisableCompression:    true,
 }
 
-// Shared HTTP client for general requests (reuses connections)
 var sharedClient = &http.Client{
 	Transport: sharedTransport,
 	Timeout:   DefaultTimeout,
 }
 
-// Shared HTTP client for downloads (longer timeout, reuses connections)
 var downloadClient = &http.Client{
 	Transport: sharedTransport,
 	Timeout:   DownloadTimeout,
 }
 
 // NewHTTPClientWithTimeout creates an HTTP client with specified timeout
-// Uses shared transport for connection reuse
 func NewHTTPClientWithTimeout(timeout time.Duration) *http.Client {
 	return &http.Client{
 		Transport: sharedTransport,
@@ -124,18 +115,15 @@ func NewHTTPClientWithTimeout(timeout time.Duration) *http.Client {
 	}
 }
 
-// GetSharedClient returns the shared HTTP client for general requests
 func GetSharedClient() *http.Client {
 	return sharedClient
 }
 
-// GetDownloadClient returns the shared HTTP client for downloads
 func GetDownloadClient() *http.Client {
 	return downloadClient
 }
 
 // CloseIdleConnections closes idle connections in the shared transport
-// Call this periodically during large batch downloads to prevent connection buildup
 func CloseIdleConnections() {
 	sharedTransport.CloseIdleConnections()
 }
@@ -146,7 +134,6 @@ func DoRequestWithUserAgent(client *http.Client, req *http.Request) (*http.Respo
 	req.Header.Set("User-Agent", getRandomUserAgent())
 	resp, err := client.Do(req)
 	if err != nil {
-		// Check for ISP blocking
 		CheckAndLogISPBlocking(err, req.URL.String(), "HTTP")
 	}
 	return resp, err

go_backend/logbuffer.go

@@ -21,7 +21,7 @@ type LogBuffer struct {
 	entries        []LogEntry
 	maxSize        int
 	mu             sync.RWMutex
-	loggingEnabled bool // Whether logging is enabled (controlled by Flutter)
+	loggingEnabled bool
 }
 
 var (
@@ -60,7 +60,6 @@ func (lb *LogBuffer) Add(level, tag, message string) {
 	lb.mu.Lock()
 	defer lb.mu.Unlock()
 
-	// Skip if logging is disabled (except for errors which are always logged)
 	if !lb.loggingEnabled && level != "ERROR" && level != "FATAL" {
 		return
 	}
@@ -73,12 +72,10 @@ func (lb *LogBuffer) Add(level, tag, message string) {
 	}
 
 	if len(lb.entries) >= lb.maxSize {
-		// Remove oldest entry
 		lb.entries = lb.entries[1:]
 	}
 	lb.entries = append(lb.entries, entry)
 
-	// Also print to logcat for debugging
 	fmt.Printf("[%s] %s\n", tag, message)
 }
 
@@ -91,7 +88,6 @@ func (lb *LogBuffer) GetAll() string {
 	return string(jsonBytes)
 }
 
-// getSince returns log entries since the given index (internal use)
 func (lb *LogBuffer) getSince(index int) ([]LogEntry, int) {
 	lb.mu.RLock()
 	defer lb.mu.RUnlock()

go_backend/lyrics.go

@@ -3,14 +3,100 @@ package gobackend
 import (
 	"encoding/json"
 	"fmt"
+	"math"
 	"net/http"
 	"net/url"
 	"regexp"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 )
 
+// ========================================
+// Lyrics Cache with TTL
+// ========================================
+
+const (
+	lyricsCacheTTL       = 24 * time.Hour // Cache lyrics for 24 hours
+	durationToleranceSec = 10.0           // Duration matching tolerance in seconds
+)
+
+type lyricsCacheEntry struct {
+	response  *LyricsResponse
+	expiresAt time.Time
+}
+
+type lyricsCache struct {
+	mu    sync.RWMutex
+	cache map[string]*lyricsCacheEntry
+}
+
+var globalLyricsCache = &lyricsCache{
+	cache: make(map[string]*lyricsCacheEntry),
+}
+
+func (c *lyricsCache) generateKey(artist, track string, durationSec float64) string {
+	// Normalize key: lowercase, trim spaces
+	normalizedArtist := strings.ToLower(strings.TrimSpace(artist))
+	normalizedTrack := strings.ToLower(strings.TrimSpace(track))
+	// Round duration to nearest 10 seconds for cache key
+	roundedDuration := math.Round(durationSec/10) * 10
+	return fmt.Sprintf("%s|%s|%.0f", normalizedArtist, normalizedTrack, roundedDuration)
+}
+
+func (c *lyricsCache) Get(artist, track string, durationSec float64) (*LyricsResponse, bool) {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+
+	key := c.generateKey(artist, track, durationSec)
+	entry, exists := c.cache[key]
+	if !exists {
+		return nil, false
+	}
+
+	// Check if expired
+	if time.Now().After(entry.expiresAt) {
+		return nil, false
+	}
+
+	return entry.response, true
+}
+
+func (c *lyricsCache) Set(artist, track string, durationSec float64, response *LyricsResponse) {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	key := c.generateKey(artist, track, durationSec)
+	c.cache[key] = &lyricsCacheEntry{
+		response:  response,
+		expiresAt: time.Now().Add(lyricsCacheTTL),
+	}
+}
+
+// CleanExpired removes expired entries from cache
+func (c *lyricsCache) CleanExpired() int {
+	c.mu.Lock()
+	defer c.mu.Unlock()
+
+	now := time.Now()
+	cleaned := 0
+	for key, entry := range c.cache {
+		if now.After(entry.expiresAt) {
+			delete(c.cache, key)
+			cleaned++
+		}
+	}
+	return cleaned
+}
+
+// Size returns current cache size
+func (c *lyricsCache) Size() int {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	return len(c.cache)
+}
+
 type LRCLibResponse struct {
 	ID           int     `json:"id"`
 	Name         string  `json:"name"`
@@ -86,7 +172,9 @@ func (c *LyricsClient) FetchLyricsWithMetadata(artist, track string) (*LyricsRes
 	return c.parseLRCLibResponse(&lrcResp), nil
 }
 
-func (c *LyricsClient) FetchLyricsFromLRCLibSearch(query string) (*LyricsResponse, error) {
+// FetchLyricsFromLRCLibSearch searches lyrics with optional duration matching
+// durationSec: track duration in seconds, use 0 to skip duration matching
+func (c *LyricsClient) FetchLyricsFromLRCLibSearch(query string, durationSec float64) (*LyricsResponse, error) {
 	baseURL := "https://lrclib.net/api/search"
 	params := url.Values{}
 	params.Set("q", query)
@@ -118,6 +206,13 @@ func (c *LyricsClient) FetchLyricsFromLRCLibSearch(query string) (*LyricsRespons
 		return nil, fmt.Errorf("no lyrics found")
 	}
 
+	// Filter and score results based on duration matching and synced lyrics
+	bestMatch := c.findBestMatch(results, durationSec)
+	if bestMatch != nil {
+		return c.parseLRCLibResponse(bestMatch), nil
+	}
+
+	// Fallback: return first result with synced lyrics
 	for _, result := range results {
 		if result.SyncedLyrics != "" {
 			return c.parseLRCLibResponse(&result), nil
@@ -127,38 +222,89 @@ func (c *LyricsClient) FetchLyricsFromLRCLibSearch(query string) (*LyricsRespons
 	return c.parseLRCLibResponse(&results[0]), nil
 }
 
-func (c *LyricsClient) FetchLyricsAllSources(spotifyID, trackName, artistName string) (*LyricsResponse, error) {
-	// Strategy 1: Direct match with artist and track name
-	lyrics, err := c.FetchLyricsWithMetadata(artistName, trackName)
+// findBestMatch finds the best matching lyrics based on duration and sync status
+func (c *LyricsClient) findBestMatch(results []LRCLibResponse, targetDurationSec float64) *LRCLibResponse {
+	var bestSynced *LRCLibResponse
+	var bestPlain *LRCLibResponse
+
+	for i := range results {
+		result := &results[i]
+
+		// Check duration match if target duration is provided
+		durationMatches := targetDurationSec == 0 || c.durationMatches(result.Duration, targetDurationSec)
+
+		if durationMatches {
+			// Prefer synced lyrics over plain
+			if result.SyncedLyrics != "" && bestSynced == nil {
+				bestSynced = result
+			} else if result.PlainLyrics != "" && bestPlain == nil {
+				bestPlain = result
+			}
+		}
+	}
+
+	// Return synced first, then plain
+	if bestSynced != nil {
+		return bestSynced
+	}
+	return bestPlain
+}
+
+// durationMatches checks if two durations are within tolerance
+func (c *LyricsClient) durationMatches(lrcDuration, targetDuration float64) bool {
+	diff := math.Abs(lrcDuration - targetDuration)
+	return diff <= durationToleranceSec
+}
+
+// FetchLyricsAllSources fetches lyrics from multiple sources with caching and duration matching
+// durationSec: track duration in seconds for matching, use 0 to skip duration matching
+func (c *LyricsClient) FetchLyricsAllSources(spotifyID, trackName, artistName string, durationSec float64) (*LyricsResponse, error) {
+	// Check cache first
+	if cached, found := globalLyricsCache.Get(artistName, trackName, durationSec); found {
+		fmt.Printf("[Lyrics] Cache hit for: %s - %s\n", artistName, trackName)
+		cachedCopy := *cached
+		cachedCopy.Source = cached.Source + " (cached)"
+		return &cachedCopy, nil
+	}
+
+	var lyrics *LyricsResponse
+	var err error
+
+	// Try exact match first
+	lyrics, err = c.FetchLyricsWithMetadata(artistName, trackName)
 	if err == nil && lyrics != nil && len(lyrics.Lines) > 0 {
 		lyrics.Source = "LRCLIB"
+		globalLyricsCache.Set(artistName, trackName, durationSec, lyrics)
 		return lyrics, nil
 	}
 
-	// Strategy 2: Try with simplified track name
+	// Try with simplified track name
 	simplifiedTrack := simplifyTrackName(trackName)
 	if simplifiedTrack != trackName {
 		lyrics, err = c.FetchLyricsWithMetadata(artistName, simplifiedTrack)
 		if err == nil && lyrics != nil && len(lyrics.Lines) > 0 {
 			lyrics.Source = "LRCLIB (simplified)"
+			globalLyricsCache.Set(artistName, trackName, durationSec, lyrics)
 			return lyrics, nil
 		}
 	}
 
-	// Strategy 3: Search with full query
+	// Search with duration matching
 	query := artistName + " " + trackName
-	lyrics, err = c.FetchLyricsFromLRCLibSearch(query)
+	lyrics, err = c.FetchLyricsFromLRCLibSearch(query, durationSec)
 	if err == nil && lyrics != nil && len(lyrics.Lines) > 0 {
 		lyrics.Source = "LRCLIB Search"
+		globalLyricsCache.Set(artistName, trackName, durationSec, lyrics)
 		return lyrics, nil
 	}
 
-	// Strategy 4: Search with simplified query
+	// Search with simplified name and duration matching
 	if simplifiedTrack != trackName {
 		query = artistName + " " + simplifiedTrack
-		lyrics, err = c.FetchLyricsFromLRCLibSearch(query)
+		lyrics, err = c.FetchLyricsFromLRCLibSearch(query, durationSec)
 		if err == nil && lyrics != nil && len(lyrics.Lines) > 0 {
 			lyrics.Source = "LRCLIB Search (simplified)"
+			globalLyricsCache.Set(artistName, trackName, durationSec, lyrics)
 			return lyrics, nil
 		}
 	}

go_backend/metadata.go

@@ -33,7 +33,6 @@ func EmbedMetadata(filePath string, metadata Metadata, coverPath string) error {
 		return fmt.Errorf("failed to parse FLAC file: %w", err)
 	}
 
-	// Find or create vorbis comment block
 	var cmtIdx int = -1
 	var cmt *flacvorbis.MetaDataBlockVorbisComment
 
@@ -52,7 +51,6 @@ func EmbedMetadata(filePath string, metadata Metadata, coverPath string) error {
 		cmt = flacvorbis.New()
 	}
 
-	// Set metadata fields
 	setComment(cmt, "TITLE", metadata.Title)
 	setComment(cmt, "ARTIST", metadata.Artist)
 	setComment(cmt, "ALBUM", metadata.Album)
@@ -84,7 +82,6 @@ func EmbedMetadata(filePath string, metadata Metadata, coverPath string) error {
 		setComment(cmt, "UNSYNCEDLYRICS", metadata.Lyrics)
 	}
 
-	// Update or add vorbis comment block
 	cmtBlock := cmt.Marshal()
 	if cmtIdx >= 0 {
 		f.Meta[cmtIdx] = &cmtBlock
@@ -92,14 +89,12 @@ func EmbedMetadata(filePath string, metadata Metadata, coverPath string) error {
 		f.Meta = append(f.Meta, &cmtBlock)
 	}
 
-	// Add cover art if provided
 	if coverPath != "" {
 		if fileExists(coverPath) {
 			coverData, err := os.ReadFile(coverPath)
 			if err != nil {
 				fmt.Printf("[Metadata] Warning: Failed to read cover file %s: %v\n", coverPath, err)
 			} else {
-				// Remove existing picture blocks first (like PC version)
 				for i := len(f.Meta) - 1; i >= 0; i-- {
 					if f.Meta[i].Type == flac.Picture {
 						f.Meta = append(f.Meta[:i], f.Meta[i+1:]...)
@@ -125,7 +120,6 @@ func EmbedMetadata(filePath string, metadata Metadata, coverPath string) error {
 		}
 	}
 
-	// Save file
 	return f.Save(filePath)
 }
 
@@ -137,7 +131,6 @@ func EmbedMetadataWithCoverData(filePath string, metadata Metadata, coverData []
 		return fmt.Errorf("failed to parse FLAC file: %w", err)
 	}
 
-	// Find or create vorbis comment block
 	var cmtIdx int = -1
 	var cmt *flacvorbis.MetaDataBlockVorbisComment
 
@@ -156,7 +149,6 @@ func EmbedMetadataWithCoverData(filePath string, metadata Metadata, coverData []
 		cmt = flacvorbis.New()
 	}
 
-	// Set metadata fields
 	setComment(cmt, "TITLE", metadata.Title)
 	setComment(cmt, "ARTIST", metadata.Artist)
 	setComment(cmt, "ALBUM", metadata.Album)
@@ -188,7 +180,6 @@ func EmbedMetadataWithCoverData(filePath string, metadata Metadata, coverData []
 		setComment(cmt, "UNSYNCEDLYRICS", metadata.Lyrics)
 	}
 
-	// Update or add vorbis comment block
 	cmtBlock := cmt.Marshal()
 	if cmtIdx >= 0 {
 		f.Meta[cmtIdx] = &cmtBlock
@@ -196,9 +187,7 @@ func EmbedMetadataWithCoverData(filePath string, metadata Metadata, coverData []
 		f.Meta = append(f.Meta, &cmtBlock)
 	}
 
-	// Add cover art if provided
 	if len(coverData) > 0 {
-		// Remove existing picture blocks first
 		for i := len(f.Meta) - 1; i >= 0; i-- {
 			if f.Meta[i].Type == flac.Picture {
 				f.Meta = append(f.Meta[:i], f.Meta[i+1:]...)
@@ -220,7 +209,6 @@ func EmbedMetadataWithCoverData(filePath string, metadata Metadata, coverData []
 		}
 	}
 
-	// Save file
 	return f.Save(filePath)
 }
 
@@ -257,7 +245,6 @@ func ReadMetadata(filePath string) (*Metadata, error) {
 			if trackNum != "" {
 				fmt.Sscanf(trackNum, "%d", &metadata.TrackNumber)
 			}
-			// Also try lowercase variant (some encoders use lowercase)
 			if metadata.TrackNumber == 0 {
 				trackNum = getComment(cmt, "TRACK")
 				if trackNum != "" {
@@ -269,7 +256,6 @@ func ReadMetadata(filePath string) (*Metadata, error) {
 			if discNum != "" {
 				fmt.Sscanf(discNum, "%d", &metadata.DiscNumber)
 			}
-			// Also try DISC variant
 			if metadata.DiscNumber == 0 {
 				discNum = getComment(cmt, "DISC")
 				if discNum != "" {
@@ -277,7 +263,6 @@ func ReadMetadata(filePath string) (*Metadata, error) {
 				}
 			}
 
-			// Try DATE variants
 			if metadata.Date == "" {
 				metadata.Date = getComment(cmt, "YEAR")
 			}
@@ -293,7 +278,6 @@ func setComment(cmt *flacvorbis.MetaDataBlockVorbisComment, key, value string) {
 	if value == "" {
 		return
 	}
-	// Remove existing (case-insensitive comparison for Vorbis comments)
 	keyUpper := strings.ToUpper(key)
 	for i := len(cmt.Comments) - 1; i >= 0; i-- {
 		comment := cmt.Comments[i]
@@ -305,7 +289,6 @@ func setComment(cmt *flacvorbis.MetaDataBlockVorbisComment, key, value string) {
 			}
 		}
 	}
-	// Add new
 	cmt.Comments = append(cmt.Comments, key+"="+value)
 }
 
@@ -313,7 +296,6 @@ func getComment(cmt *flacvorbis.MetaDataBlockVorbisComment, key string) string {
 	keyUpper := strings.ToUpper(key) + "="
 	for _, comment := range cmt.Comments {
 		if len(comment) > len(key) {
-			// Case-insensitive comparison for Vorbis comments
 			commentUpper := strings.ToUpper(comment[:len(key)+1])
 			if commentUpper == keyUpper {
 				return comment[len(key)+1:]
@@ -323,7 +305,6 @@ func getComment(cmt *flacvorbis.MetaDataBlockVorbisComment, key string) string {
 	return ""
 }
 
-// fileExists checks if a file exists
 func fileExists(path string) bool {
 	_, err := os.Stat(path)
 	return err == nil
@@ -381,13 +362,11 @@ func ExtractLyrics(filePath string) (string, error) {
 				continue
 			}
 
-			// Try LYRICS tag first
 			lyrics, err := cmt.Get("LYRICS")
 			if err == nil && len(lyrics) > 0 && lyrics[0] != "" {
 				return lyrics[0], nil
 			}
 
-			// Fallback to UNSYNCEDLYRICS
 			lyrics, err = cmt.Get("UNSYNCEDLYRICS")
 			if err == nil && len(lyrics) > 0 && lyrics[0] != "" {
 				return lyrics[0], nil
@@ -415,16 +394,12 @@ func GetAudioQuality(filePath string) (AudioQuality, error) {
 	}
 	defer file.Close()
 
-	// Read first 4 bytes to detect file type
 	marker := make([]byte, 4)
 	if _, err := file.Read(marker); err != nil {
 		return AudioQuality{}, fmt.Errorf("failed to read marker: %w", err)
 	}
 
-	// Check if it's a FLAC file
 	if string(marker) == "fLaC" {
-		// Continue reading FLAC metadata
-		// Read metadata block header (4 bytes)
 		header := make([]byte, 4)
 		if _, err := file.Read(header); err != nil {
 			return AudioQuality{}, fmt.Errorf("failed to read header: %w", err)
@@ -435,19 +410,15 @@ func GetAudioQuality(filePath string) (AudioQuality, error) {
 			return AudioQuality{}, fmt.Errorf("first block is not STREAMINFO")
 		}
 
-		// Read STREAMINFO block (34 bytes minimum)
 		streamInfo := make([]byte, 34)
 		if _, err := file.Read(streamInfo); err != nil {
 			return AudioQuality{}, fmt.Errorf("failed to read STREAMINFO: %w", err)
 		}
 
-		// Parse sample rate (20 bits starting at byte 10)
 		sampleRate := (int(streamInfo[10]) << 12) | (int(streamInfo[11]) << 4) | (int(streamInfo[12]) >> 4)
 
-		// Parse bits per sample (5 bits)
 		bitsPerSample := ((int(streamInfo[12]) & 0x01) << 4) | (int(streamInfo[13]) >> 4) + 1
 
-		// Parse total samples (36 bits: 4 bits from byte 13, all of bytes 14-17)
 		totalSamples := int64(streamInfo[13]&0x0F)<<32 |
 			int64(streamInfo[14])<<24 |
 			int64(streamInfo[15])<<16 |
@@ -461,17 +432,14 @@ func GetAudioQuality(filePath string) (AudioQuality, error) {
 		}, nil
 	}
 
-	// Check if it's an M4A/MP4 file (starts with size + "ftyp")
-	// First 4 bytes are size, next 4 should be "ftyp"
-	file.Seek(0, 0) // Reset to beginning
+	file.Seek(0, 0)
 	header8 := make([]byte, 8)
 	if _, err := file.Read(header8); err != nil {
 		return AudioQuality{}, fmt.Errorf("failed to read header: %w", err)
 	}
 
 	if string(header8[4:8]) == "ftyp" {
-		// It's an M4A/MP4 file, use M4A quality reader
-		file.Close() // Close before calling GetM4AQuality which opens the file again
+		file.Close()
 		return GetM4AQuality(filePath)
 	}
 
@@ -483,41 +451,33 @@ func GetAudioQuality(filePath string) (AudioQuality, error) {
 // ========================================
 
 // EmbedM4AMetadata embeds metadata into an M4A file using iTunes-style atoms
-// This is a simplified implementation that writes metadata to the file
 func EmbedM4AMetadata(filePath string, metadata Metadata, coverData []byte) error {
-	// Read the entire file
 	data, err := os.ReadFile(filePath)
 	if err != nil {
 		return fmt.Errorf("failed to read M4A file: %w", err)
 	}
 
-	// Find moov atom position
 	moovPos := findAtom(data, "moov", 0)
 	if moovPos < 0 {
 		return fmt.Errorf("moov atom not found in M4A file")
 	}
 
-	// Find udta atom inside moov, or create one
-	moovSize := int(data[moovPos]<<24 | data[moovPos+1]<<16 | data[moovPos+2]<<8 | data[moovPos+3])
+	moovSize := int(uint32(data[moovPos])<<24 | uint32(data[moovPos+1])<<16 | uint32(data[moovPos+2])<<8 | uint32(data[moovPos+3]))
 	udtaPos := findAtom(data, "udta", moovPos+8)
 
-	// Build new metadata atoms
 	metaAtom := buildMetaAtom(metadata, coverData)
 
 	var newData []byte
 	if udtaPos >= 0 && udtaPos < moovPos+moovSize {
-		// udta exists, find meta inside it or replace
-		udtaSize := int(data[udtaPos]<<24 | data[udtaPos+1]<<16 | data[udtaPos+2]<<8 | data[udtaPos+3])
+		udtaSize := int(uint32(data[udtaPos])<<24 | uint32(data[udtaPos+1])<<16 | uint32(data[udtaPos+2])<<8 | uint32(data[udtaPos+3]))
 		metaPos := findAtom(data, "meta", udtaPos+8)
 
 		if metaPos >= 0 && metaPos < udtaPos+udtaSize {
-			// Replace existing meta atom
-			metaSize := int(data[metaPos]<<24 | data[metaPos+1]<<16 | data[metaPos+2]<<8 | data[metaPos+3])
+			metaSize := int(uint32(data[metaPos])<<24 | uint32(data[metaPos+1])<<16 | uint32(data[metaPos+2])<<8 | uint32(data[metaPos+3]))
 			newData = append(newData, data[:metaPos]...)
 			newData = append(newData, metaAtom...)
 			newData = append(newData, data[metaPos+metaSize:]...)
 		} else {
-			// Add meta atom to udta
 			newUdtaContent := append(data[udtaPos+8:udtaPos+udtaSize], metaAtom...)
 			newUdtaSize := 8 + len(newUdtaContent)
 			newUdta := make([]byte, 4)
@@ -533,7 +493,6 @@ func EmbedM4AMetadata(filePath string, metadata Metadata, coverData []byte) erro
 			newData = append(newData, data[udtaPos+udtaSize:]...)
 		}
 	} else {
-		// Create new udta with meta
 		udtaContent := metaAtom
 		udtaSize := 8 + len(udtaContent)
 		newUdta := make([]byte, 4)
@@ -544,21 +503,18 @@ func EmbedM4AMetadata(filePath string, metadata Metadata, coverData []byte) erro
 		newUdta = append(newUdta, []byte("udta")...)
 		newUdta = append(newUdta, udtaContent...)
 
-		// Insert udta at end of moov
 		insertPos := moovPos + moovSize
 		newData = append(newData, data[:insertPos]...)
 		newData = append(newData, newUdta...)
 		newData = append(newData, data[insertPos:]...)
 	}
 
-	// Update moov size
 	newMoovSize := moovSize + len(newData) - len(data)
 	newData[moovPos] = byte(newMoovSize >> 24)
 	newData[moovPos+1] = byte(newMoovSize >> 16)
 	newData[moovPos+2] = byte(newMoovSize >> 8)
 	newData[moovPos+3] = byte(newMoovSize)
 
-	// Write back to file
 	if err := os.WriteFile(filePath, newData, 0644); err != nil {
 		return fmt.Errorf("failed to write M4A file: %w", err)
 	}
@@ -570,7 +526,7 @@ func EmbedM4AMetadata(filePath string, metadata Metadata, coverData []byte) erro
 // findAtom finds an atom by name starting from offset
 func findAtom(data []byte, name string, offset int) int {
 	for i := offset; i < len(data)-8; {
-		size := int(data[i]<<24 | data[i+1]<<16 | data[i+2]<<8 | data[i+3])
+		size := int(uint32(data[i])<<24 | uint32(data[i+1])<<16 | uint32(data[i+2])<<8 | uint32(data[i+3]))
 		if size < 8 {
 			break
 		}
@@ -585,55 +541,44 @@ func findAtom(data []byte, name string, offset int) int {
 
 // buildMetaAtom builds a complete meta atom with ilst containing metadata
 func buildMetaAtom(metadata Metadata, coverData []byte) []byte {
-	// Build ilst content
 	var ilst []byte
 
-	// ©nam - Title
 	if metadata.Title != "" {
 		ilst = append(ilst, buildTextAtom("©nam", metadata.Title)...)
 	}
 
-	// ©ART - Artist
 	if metadata.Artist != "" {
 		ilst = append(ilst, buildTextAtom("©ART", metadata.Artist)...)
 	}
 
-	// ©alb - Album
 	if metadata.Album != "" {
 		ilst = append(ilst, buildTextAtom("©alb", metadata.Album)...)
 	}
 
-	// aART - Album Artist
 	if metadata.AlbumArtist != "" {
 		ilst = append(ilst, buildTextAtom("aART", metadata.AlbumArtist)...)
 	}
 
-	// ©day - Year/Date
 	if metadata.Date != "" {
 		ilst = append(ilst, buildTextAtom("©day", metadata.Date)...)
 	}
 
-	// trkn - Track Number
 	if metadata.TrackNumber > 0 {
 		ilst = append(ilst, buildTrackNumberAtom(metadata.TrackNumber, metadata.TotalTracks)...)
 	}
 
-	// disk - Disc Number
 	if metadata.DiscNumber > 0 {
 		ilst = append(ilst, buildDiscNumberAtom(metadata.DiscNumber, 0)...)
 	}
 
-	// ©lyr - Lyrics
 	if metadata.Lyrics != "" {
 		ilst = append(ilst, buildTextAtom("©lyr", metadata.Lyrics)...)
 	}
 
-	// covr - Cover Art
 	if len(coverData) > 0 {
 		ilst = append(ilst, buildCoverAtom(coverData)...)
 	}
 
-	// Build ilst atom
 	ilstSize := 8 + len(ilst)
 	ilstAtom := make([]byte, 4)
 	ilstAtom[0] = byte(ilstSize >> 24)
@@ -643,7 +588,6 @@ func buildMetaAtom(metadata Metadata, coverData []byte) []byte {
 	ilstAtom = append(ilstAtom, []byte("ilst")...)
 	ilstAtom = append(ilstAtom, ilst...)
 
-	// Build hdlr atom (required for meta)
 	hdlr := []byte{
 		0, 0, 0, 33, // size = 33
 		'h', 'd', 'l', 'r',
@@ -656,7 +600,6 @@ func buildMetaAtom(metadata Metadata, coverData []byte) []byte {
 		0, // null terminator
 	}
 
-	// Build meta atom
 	metaContent := append([]byte{0, 0, 0, 0}, hdlr...) // version + flags + hdlr
 	metaContent = append(metaContent, ilstAtom...)
 
@@ -676,7 +619,6 @@ func buildMetaAtom(metadata Metadata, coverData []byte) []byte {
 func buildTextAtom(name, value string) []byte {
 	valueBytes := []byte(value)
 
-	// data atom
 	dataSize := 16 + len(valueBytes)
 	dataAtom := make([]byte, 4)
 	dataAtom[0] = byte(dataSize >> 24)
@@ -688,7 +630,6 @@ func buildTextAtom(name, value string) []byte {
 	dataAtom = append(dataAtom, 0, 0, 0, 0) // locale
 	dataAtom = append(dataAtom, valueBytes...)
 
-	// container atom
 	atomSize := 8 + len(dataAtom)
 	atom := make([]byte, 4)
 	atom[0] = byte(atomSize >> 24)
@@ -703,7 +644,6 @@ func buildTextAtom(name, value string) []byte {
 
 // buildTrackNumberAtom builds trkn atom
 func buildTrackNumberAtom(track, total int) []byte {
-	// data atom with track number
 	dataAtom := []byte{
 		0, 0, 0, 24, // size
 		'd', 'a', 't', 'a',
@@ -715,7 +655,6 @@ func buildTrackNumberAtom(track, total int) []byte {
 		0, 0, // padding
 	}
 
-	// trkn atom
 	atomSize := 8 + len(dataAtom)
 	atom := make([]byte, 4)
 	atom[0] = byte(atomSize >> 24)
@@ -730,7 +669,6 @@ func buildTrackNumberAtom(track, total int) []byte {
 
 // buildDiscNumberAtom builds disk atom
 func buildDiscNumberAtom(disc, total int) []byte {
-	// data atom with disc number
 	dataAtom := []byte{
 		0, 0, 0, 22, // size
 		'd', 'a', 't', 'a',
@@ -741,7 +679,6 @@ func buildDiscNumberAtom(disc, total int) []byte {
 		byte(total >> 8), byte(total), // total discs
 	}
 
-	// disk atom
 	atomSize := 8 + len(dataAtom)
 	atom := make([]byte, 4)
 	atom[0] = byte(atomSize >> 24)
@@ -756,13 +693,11 @@ func buildDiscNumberAtom(disc, total int) []byte {
 
 // buildCoverAtom builds covr atom with image data
 func buildCoverAtom(coverData []byte) []byte {
-	// Detect image type (JPEG = 13, PNG = 14)
 	imageType := byte(13) // default JPEG
 	if len(coverData) > 8 && coverData[0] == 0x89 && coverData[1] == 'P' && coverData[2] == 'N' && coverData[3] == 'G' {
 		imageType = 14 // PNG
 	}
 
-	// data atom
 	dataSize := 16 + len(coverData)
 	dataAtom := make([]byte, 4)
 	dataAtom[0] = byte(dataSize >> 24)
@@ -774,7 +709,6 @@ func buildCoverAtom(coverData []byte) []byte {
 	dataAtom = append(dataAtom, 0, 0, 0, 0)         // locale
 	dataAtom = append(dataAtom, coverData...)
 
-	// covr atom
 	atomSize := 8 + len(dataAtom)
 	atom := make([]byte, 4)
 	atom[0] = byte(atomSize >> 24)
@@ -794,24 +728,18 @@ func GetM4AQuality(filePath string) (AudioQuality, error) {
 		return AudioQuality{}, fmt.Errorf("failed to read M4A file: %w", err)
 	}
 
-	// Find moov -> trak -> mdia -> minf -> stbl -> stsd
 	moovPos := findAtom(data, "moov", 0)
 	if moovPos < 0 {
 		return AudioQuality{}, fmt.Errorf("moov atom not found")
 	}
 
-	// Search for mp4a or alac atom which contains audio info
-	// This is a simplified search - real implementation would traverse the atom tree
 	for i := moovPos; i < len(data)-20; i++ {
 		if string(data[i:i+4]) == "mp4a" || string(data[i:i+4]) == "alac" {
-			// Sample rate is at offset 22-23 from atom start (16-bit big-endian)
 			if i+24 < len(data) {
 				sampleRate := int(data[i+22])<<8 | int(data[i+23])
-				// For AAC, bit depth is typically 16
 				bitDepth := 16
 				if string(data[i:i+4]) == "alac" {
-					// ALAC can have higher bit depth, check esds or alac specific data
-					bitDepth = 24 // Assume 24-bit for ALAC
+					bitDepth = 24
 				}
 				return AudioQuality{BitDepth: bitDepth, SampleRate: sampleRate}, nil
 			}

go_backend/parallel.go

@@ -35,7 +35,7 @@ func GetTrackIDCache() *TrackIDCache {
 	trackIDCacheOnce.Do(func() {
 		globalTrackIDCache = &TrackIDCache{
 			cache: make(map[string]*TrackIDCacheEntry),
-			ttl:   30 * time.Minute, // Cache for 30 minutes
+			ttl:   30 * time.Minute,
 		}
 	})
 	return globalTrackIDCache
@@ -124,6 +124,7 @@ type ParallelDownloadResult struct {
 
 // FetchCoverAndLyricsParallel downloads cover and fetches lyrics in parallel
 // This runs while the main audio download is happening
+// durationMs: track duration in milliseconds for lyrics matching
 func FetchCoverAndLyricsParallel(
 	coverURL string,
 	maxQualityCover bool,
@@ -131,11 +132,11 @@ func FetchCoverAndLyricsParallel(
 	trackName string,
 	artistName string,
 	embedLyrics bool,
+	durationMs int64,
 ) *ParallelDownloadResult {
 	result := &ParallelDownloadResult{}
 	var wg sync.WaitGroup
 
-	// Download cover in parallel
 	if coverURL != "" {
 		wg.Add(1)
 		go func() {
@@ -159,13 +160,13 @@ func FetchCoverAndLyricsParallel(
 			defer wg.Done()
 			fmt.Println("[Parallel] Starting lyrics fetch...")
 			client := NewLyricsClient()
-			lyrics, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName)
+			durationSec := float64(durationMs) / 1000.0
+			lyrics, err := client.FetchLyricsAllSources(spotifyID, trackName, artistName, durationSec)
 			if err != nil {
 				result.LyricsErr = err
 				fmt.Printf("[Parallel] Lyrics fetch failed: %v\n", err)
 			} else if lyrics != nil && len(lyrics.Lines) > 0 {
 				result.LyricsData = lyrics
-				// Use LRC with metadata headers (like PC version)
 				result.LyricsLRC = convertToLRCWithMetadata(lyrics, trackName, artistName)
 				fmt.Printf("[Parallel] Lyrics fetched: %d lines\n", len(lyrics.Lines))
 			} else {
@@ -202,12 +203,10 @@ func PreWarmTrackCache(requests []PreWarmCacheRequest) {
 	fmt.Printf("[Cache] Pre-warming cache for %d tracks...\n", len(requests))
 	cache := GetTrackIDCache()
 
-	// Limit concurrent pre-warm requests
-	semaphore := make(chan struct{}, 3) // Max 3 concurrent
+	semaphore := make(chan struct{}, 3)
 	var wg sync.WaitGroup
 
 	for _, req := range requests {
-		// Skip if already cached
 		if cached := cache.Get(req.ISRC); cached != nil {
 			continue
 		}
@@ -252,11 +251,9 @@ func preWarmQobuzCache(isrc string) {
 }
 
 func preWarmAmazonCache(isrc, spotifyID string) {
-	// Amazon uses SongLink to get URL, so we pre-warm by checking availability
 	client := NewSongLinkClient()
 	availability, err := client.CheckTrackAvailability(spotifyID, isrc)
 	if err == nil && availability != nil && availability.Amazon {
-		// Store Amazon URL in cache (using ISRC as key)
 		GetTrackIDCache().SetAmazon(isrc, availability.AmazonURL)
 		fmt.Printf("[Cache] Cached Amazon URL for ISRC %s\n", isrc)
 	}
@@ -270,10 +267,8 @@ func preWarmAmazonCache(isrc, spotifyID string) {
 // tracksJSON is a JSON array of {isrc, track_name, artist_name, service}
 func PreWarmCache(tracksJSON string) error {
 	var requests []PreWarmCacheRequest
-	// Parse JSON (simplified - in production use proper JSON parsing)
-	// For now, this is called from exports.go with proper parsing
 
-	go PreWarmTrackCache(requests) // Run in background
+	go PreWarmTrackCache(requests)
 	return nil
 }
 

go_backend/progress.go

@@ -44,16 +44,14 @@ var (
 )
 
 // getProgress returns current download progress from multi-progress system
-// Returns first active item's progress for backward compatibility
 func getProgress() DownloadProgress {
 	multiMu.RLock()
 	defer multiMu.RUnlock()
 
-	// Find first active item
 	for _, item := range multiProgress.Items {
 		return DownloadProgress{
 			CurrentFile:   item.ItemID,
-			Progress:      item.Progress * 100, // Convert to percentage
+			Progress:      item.Progress * 100,
 			BytesTotal:    item.BytesTotal,
 			BytesReceived: item.BytesReceived,
 			IsDownloading: item.IsDownloading,
@@ -240,16 +238,16 @@ func NewItemProgressWriter(w interface{ Write([]byte) (int, error) }, itemID str
 
 // Write implements io.Writer with threshold-based progress updates and speed tracking
 func (pw *ItemProgressWriter) Write(p []byte) (int, error) {
+	if pw.itemID != "" && isDownloadCancelled(pw.itemID) {
+		return 0, ErrDownloadCancelled
+	}
 	n, err := pw.writer.Write(p)
 	if err != nil {
 		return n, err
 	}
 	pw.current += int64(n)
 
-	// Update progress when we've received at least 64KB since last update
-	// Also update on first write to show download has started
 	if pw.lastReported == 0 || pw.current-pw.lastReported >= progressUpdateThreshold {
-		// Calculate speed (MB/s) based on bytes received since last update
 		now := time.Now()
 		elapsed := now.Sub(pw.lastTime).Seconds()
 		var speedMBps float64

go_backend/qobuz.go

@@ -2,8 +2,10 @@ package gobackend
 
 import (
 	"bufio"
+	"context"
 	"encoding/base64"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -23,7 +25,6 @@ type QobuzDownloader struct {
 }
 
 var (
-	// Global Qobuz downloader instance for connection reuse
 	globalQobuzDownloader *QobuzDownloader
 	qobuzDownloaderOnce   sync.Once
 )
@@ -64,28 +65,24 @@ func qobuzArtistsMatch(expectedArtist, foundArtist string) bool {
 		return true
 	}
 
-	// Check first artist (before comma or feat)
-	expectedFirst := strings.Split(normExpected, ",")[0]
-	expectedFirst = strings.Split(expectedFirst, " feat")[0]
-	expectedFirst = strings.Split(expectedFirst, " ft.")[0]
-	expectedFirst = strings.TrimSpace(expectedFirst)
+	expectedArtists := qobuzSplitArtists(normExpected)
+	foundArtists := qobuzSplitArtists(normFound)
 
-	foundFirst := strings.Split(normFound, ",")[0]
-	foundFirst = strings.Split(foundFirst, " feat")[0]
-	foundFirst = strings.Split(foundFirst, " ft.")[0]
-	foundFirst = strings.TrimSpace(foundFirst)
-
-	if expectedFirst == foundFirst {
-		return true
+	for _, exp := range expectedArtists {
+		for _, fnd := range foundArtists {
+			if exp == fnd {
+				return true
+			}
+			if strings.Contains(exp, fnd) || strings.Contains(fnd, exp) {
+				return true
+			}
+			if qobuzSameWordsUnordered(exp, fnd) {
+				GoLog("[Qobuz] Artist names have same words in different order: '%s' vs '%s'\n", exp, fnd)
+				return true
+			}
+		}
 	}
 
-	// Check if first artist is contained in the other
-	if strings.Contains(expectedFirst, foundFirst) || strings.Contains(foundFirst, expectedFirst) {
-		return true
-	}
-
-	// If scripts are TRULY different (Latin vs CJK/Arabic/Cyrillic), assume match (transliteration)
-	// Don't treat Latin Extended (Polish, French, etc.) as different script
 	expectedLatin := qobuzIsLatinScript(expectedArtist)
 	foundLatin := qobuzIsLatinScript(foundArtist)
 	if expectedLatin != foundLatin {
@@ -96,6 +93,67 @@ func qobuzArtistsMatch(expectedArtist, foundArtist string) bool {
 	return false
 }
 
+// qobuzSplitArtists splits artist string by common separators
+func qobuzSplitArtists(artists string) []string {
+	// Replace common separators with a standard one
+	normalized := artists
+	normalized = strings.ReplaceAll(normalized, " feat. ", "|")
+	normalized = strings.ReplaceAll(normalized, " feat ", "|")
+	normalized = strings.ReplaceAll(normalized, " ft. ", "|")
+	normalized = strings.ReplaceAll(normalized, " ft ", "|")
+	normalized = strings.ReplaceAll(normalized, " & ", "|")
+	normalized = strings.ReplaceAll(normalized, " and ", "|")
+	normalized = strings.ReplaceAll(normalized, ", ", "|")
+	normalized = strings.ReplaceAll(normalized, " x ", "|")
+
+	parts := strings.Split(normalized, "|")
+	result := make([]string, 0, len(parts))
+	for _, p := range parts {
+		trimmed := strings.TrimSpace(p)
+		if trimmed != "" {
+			result = append(result, trimmed)
+		}
+	}
+	return result
+}
+
+// qobuzSameWordsUnordered checks if two strings have the same words regardless of order
+// Useful for Japanese names: "Sawano Hiroyuki" vs "Hiroyuki Sawano"
+func qobuzSameWordsUnordered(a, b string) bool {
+	wordsA := strings.Fields(a)
+	wordsB := strings.Fields(b)
+
+	// Must have same number of words
+	if len(wordsA) != len(wordsB) || len(wordsA) == 0 {
+		return false
+	}
+
+	// Sort and compare
+	sortedA := make([]string, len(wordsA))
+	sortedB := make([]string, len(wordsB))
+	copy(sortedA, wordsA)
+	copy(sortedB, wordsB)
+
+	// Simple bubble sort (usually just 2-3 words)
+	for i := 0; i < len(sortedA)-1; i++ {
+		for j := i + 1; j < len(sortedA); j++ {
+			if sortedA[i] > sortedA[j] {
+				sortedA[i], sortedA[j] = sortedA[j], sortedA[i]
+			}
+			if sortedB[i] > sortedB[j] {
+				sortedB[i], sortedB[j] = sortedB[j], sortedB[i]
+			}
+		}
+	}
+
+	for i := range sortedA {
+		if sortedA[i] != sortedB[i] {
+			return false
+		}
+	}
+	return true
+}
+
 // qobuzTitlesMatch checks if track titles are similar enough
 func qobuzTitlesMatch(expectedTitle, foundTitle string) bool {
 	normExpected := strings.ToLower(strings.TrimSpace(expectedTitle))
@@ -303,6 +361,35 @@ func NewQobuzDownloader() *QobuzDownloader {
 	return globalQobuzDownloader
 }
 
+// GetTrackByID fetches track info directly by Qobuz track ID
+func (q *QobuzDownloader) GetTrackByID(trackID int64) (*QobuzTrack, error) {
+	// Qobuz API: /track/get?track_id=XXX
+	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly93d3cucW9idXouY29tL2FwaS5qc29uLzAuMi90cmFjay9nZXQ/dHJhY2tfaWQ9")
+	trackURL := fmt.Sprintf("%s%d&app_id=%s", string(apiBase), trackID, q.appID)
+
+	req, err := http.NewRequest("GET", trackURL, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	resp, err := DoRequestWithUserAgent(q.client, req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("get track failed: HTTP %d", resp.StatusCode)
+	}
+
+	var track QobuzTrack
+	if err := json.NewDecoder(resp.Body).Decode(&track); err != nil {
+		return nil, err
+	}
+
+	return &track, nil
+}
+
 // GetAvailableAPIs returns list of available Qobuz APIs
 // Uses same APIs as PC version for compatibility
 func (q *QobuzDownloader) GetAvailableAPIs() []string {
@@ -702,7 +789,7 @@ func getQobuzDownloadURLParallel(apis []string, trackID int64, quality string) (
 				Error string `json:"error"`
 			}
 			if json.Unmarshal(body, &errorResp) == nil && errorResp.Error != "" {
-				resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf(errorResp.Error), duration: time.Since(reqStart)}
+				resultChan <- qobuzAPIResult{apiURL: api, err: fmt.Errorf("%s", errorResp.Error), duration: time.Since(reqStart)}
 				return
 			}
 
@@ -725,12 +812,10 @@ func getQobuzDownloadURLParallel(apis []string, trackID int64, quality string) (
 
 	// Collect results - return first success
 	var errors []string
-	var firstSuccess *qobuzAPIResult
 
 	for i := 0; i < len(apis); i++ {
 		result := <-resultChan
-		if result.err == nil && firstSuccess == nil {
-			firstSuccess = &result
+		if result.err == nil {
 			GoLog("[Qobuz] [Parallel] ✓ Got response from %s in %v\n", result.apiURL, result.duration)
 
 			// Drain remaining results to avoid goroutine leaks
@@ -741,91 +826,19 @@ func getQobuzDownloadURLParallel(apis []string, trackID int64, quality string) (
 			}(len(apis) - i - 1)
 
 			GoLog("[Qobuz] [Parallel] Total time: %v (first success)\n", time.Since(startTime))
-			return firstSuccess.apiURL, firstSuccess.downloadURL, nil
-		} else if result.err != nil {
-			errMsg := result.err.Error()
-			if len(errMsg) > 50 {
-				errMsg = errMsg[:50] + "..."
-			}
-			errors = append(errors, fmt.Sprintf("%s: %s", result.apiURL, errMsg))
+			return result.apiURL, result.downloadURL, nil
 		}
+		errMsg := result.err.Error()
+		if len(errMsg) > 50 {
+			errMsg = errMsg[:50] + "..."
+		}
+		errors = append(errors, fmt.Sprintf("%s: %s", result.apiURL, errMsg))
 	}
 
 	GoLog("[Qobuz] [Parallel] All %d APIs failed in %v\n", len(apis), time.Since(startTime))
 	return "", "", fmt.Errorf("all %d Qobuz APIs failed. Errors: %v", len(apis), errors)
 }
 
-// getQobuzDownloadURLSequential requests download URL from APIs sequentially
-// Uses same URL format as PC version: /api/stream?trackId={id}&quality={quality}
-func getQobuzDownloadURLSequential(apis []string, trackID int64, quality string) (string, string, error) {
-	if len(apis) == 0 {
-		return "", "", fmt.Errorf("no APIs available")
-	}
-
-	client := NewHTTPClientWithTimeout(DefaultTimeout)
-	retryConfig := DefaultRetryConfig()
-	var errors []string
-
-	for _, apiURL := range apis {
-		// All APIs now use same format: https://domain/api/stream?trackId={id}&quality={quality}
-		// The apiURL already includes the path, just append trackID and quality
-		reqURL := fmt.Sprintf("%s%d&quality=%s", apiURL, trackID, quality)
-
-		GoLog("[Qobuz] Trying: %s\n", reqURL)
-
-		req, err := http.NewRequest("GET", reqURL, nil)
-		if err != nil {
-			errors = append(errors, BuildErrorMessage(apiURL, 0, err.Error()))
-			continue
-		}
-
-		resp, err := DoRequestWithRetry(client, req, retryConfig)
-		if err != nil {
-			errors = append(errors, BuildErrorMessage(apiURL, 0, err.Error()))
-			continue
-		}
-
-		body, err := ReadResponseBody(resp)
-		resp.Body.Close()
-		if err != nil {
-			errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, err.Error()))
-			continue
-		}
-
-		// Check if response is HTML (error page)
-		if len(body) > 0 && body[0] == '<' {
-			errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, "received HTML instead of JSON"))
-			continue
-		}
-
-		// Check for error in JSON response
-		var errorResp struct {
-			Error string `json:"error"`
-		}
-		if json.Unmarshal(body, &errorResp) == nil && errorResp.Error != "" {
-			errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, errorResp.Error))
-			continue
-		}
-
-		var result struct {
-			URL string `json:"url"`
-		}
-		if err := json.Unmarshal(body, &result); err != nil {
-			errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, "invalid JSON: "+err.Error()))
-			continue
-		}
-
-		if result.URL != "" {
-			GoLog("[Qobuz] Got download URL from: %s\n", apiURL)
-			return apiURL, result.URL, nil
-		}
-
-		errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, "no download URL in response"))
-	}
-
-	return "", "", fmt.Errorf("all %d Qobuz APIs failed. Errors: %v", len(apis), errors)
-}
-
 // GetDownloadURL gets download URL for a track - tries ALL APIs in parallel
 // "Siapa cepat dia dapat" - first successful response wins
 func (q *QobuzDownloader) GetDownloadURL(trackID int64, quality string) (string, error) {
@@ -834,7 +847,6 @@ func (q *QobuzDownloader) GetDownloadURL(trackID int64, quality string) (string,
 		return "", fmt.Errorf("no Qobuz API available")
 	}
 
-	// Use parallel approach - request from all APIs simultaneously
 	_, downloadURL, err := getQobuzDownloadURLParallel(apis, trackID, quality)
 	if err != nil {
 		return "", err
@@ -845,19 +857,30 @@ func (q *QobuzDownloader) GetDownloadURL(trackID int64, quality string) (string,
 
 // DownloadFile downloads a file from URL with User-Agent and progress tracking
 func (q *QobuzDownloader) DownloadFile(downloadURL, outputPath, itemID string) error {
+	ctx := context.Background()
+
 	// Initialize item progress (required for all downloads)
 	if itemID != "" {
 		StartItemProgress(itemID)
 		defer CompleteItemProgress(itemID)
+		ctx = initDownloadCancel(itemID)
+		defer clearDownloadCancel(itemID)
 	}
 
-	req, err := http.NewRequest("GET", downloadURL, nil)
+	if isDownloadCancelled(itemID) {
+		return ErrDownloadCancelled
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "GET", downloadURL, nil)
 	if err != nil {
 		return fmt.Errorf("failed to create request: %w", err)
 	}
 
 	resp, err := DoRequestWithUserAgent(q.client, req)
 	if err != nil {
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		return err
 	}
 	defer resp.Body.Close()
@@ -867,7 +890,6 @@ func (q *QobuzDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 	}
 
 	expectedSize := resp.ContentLength
-	// Set total bytes if available
 	if expectedSize > 0 && itemID != "" {
 		SetItemBytesTotal(itemID, expectedSize)
 	}
@@ -877,16 +899,13 @@ func (q *QobuzDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 		return err
 	}
 
-	// Use buffered writer for better performance (256KB buffer)
 	bufWriter := bufio.NewWriterSize(out, 256*1024)
 
-	// Use item progress writer with buffered output
 	var written int64
 	if itemID != "" {
 		progressWriter := NewItemProgressWriter(bufWriter, itemID)
 		written, err = io.Copy(progressWriter, resp.Body)
 	} else {
-		// Fallback: direct copy without progress tracking
 		written, err = io.Copy(bufWriter, resp.Body)
 	}
 
@@ -894,9 +913,11 @@ func (q *QobuzDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 	flushErr := bufWriter.Flush()
 	closeErr := out.Close()
 
-	// Check for any errors
 	if err != nil {
 		os.Remove(outputPath)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		return fmt.Errorf("download interrupted: %w", err)
 	}
 	if flushErr != nil {
@@ -935,19 +956,31 @@ type QobuzDownloadResult struct {
 func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 	downloader := NewQobuzDownloader()
 
-	// Check for existing file first
 	if existingFile, exists := checkISRCExistsInternal(req.OutputDir, req.ISRC); exists {
 		return QobuzDownloadResult{FilePath: "EXISTS:" + existingFile}, nil
 	}
 
-	// Convert expected duration from ms to seconds
 	expectedDurationSec := req.DurationMS / 1000
 
 	var track *QobuzTrack
 	var err error
 
+	if req.QobuzID != "" {
+		GoLog("[Qobuz] Using Qobuz ID from Odesli enrichment: %s\n", req.QobuzID)
+		var trackID int64
+		if _, parseErr := fmt.Sscanf(req.QobuzID, "%d", &trackID); parseErr == nil && trackID > 0 {
+			track, err = downloader.GetTrackByID(trackID)
+			if err != nil {
+				GoLog("[Qobuz] Failed to get track by Odesli ID %d: %v\n", trackID, err)
+				track = nil
+			} else if track != nil {
+				GoLog("[Qobuz] Successfully found track via Odesli ID: '%s' by '%s'\n", track.Title, track.Performer.Name)
+			}
+		}
+	}
+
 	// OPTIMIZATION: Check cache first for track ID
-	if req.ISRC != "" {
+	if track == nil && req.ISRC != "" {
 		if cached := GetTrackIDCache().Get(req.ISRC); cached != nil && cached.QobuzTrackID > 0 {
 			GoLog("[Qobuz] Cache hit! Using cached track ID: %d\n", cached.QobuzTrackID)
 			// For Qobuz we need to search again to get full track info, but we can use the ID
@@ -1002,7 +1035,6 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 		GetTrackIDCache().SetQobuz(req.ISRC, track.ID)
 	}
 
-	// Build filename
 	filename := buildFilenameFromTemplate(req.FilenameFormat, map[string]interface{}{
 		"title":  req.TrackName,
 		"artist": req.ArtistName,
@@ -1014,7 +1046,6 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 	filename = sanitizeFilename(filename) + ".flac"
 	outputPath := filepath.Join(req.OutputDir, filename)
 
-	// Check if file already exists
 	if fileInfo, statErr := os.Stat(outputPath); statErr == nil && fileInfo.Size() > 0 {
 		return QobuzDownloadResult{FilePath: "EXISTS:" + outputPath}, nil
 	}
@@ -1033,12 +1064,10 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 	}
 	GoLog("[Qobuz] Using quality: %s (mapped from %s)\n", qobuzQuality, req.Quality)
 
-	// Get actual quality from track metadata
 	actualBitDepth := track.MaximumBitDepth
 	actualSampleRate := int(track.MaximumSamplingRate * 1000) // Convert kHz to Hz
 	GoLog("[Qobuz] Actual quality: %d-bit/%.1fkHz\n", actualBitDepth, track.MaximumSamplingRate)
 
-	// Get download URL using parallel API requests
 	downloadURL, err := downloader.GetDownloadURL(track.ID, qobuzQuality)
 	if err != nil {
 		return QobuzDownloadResult{}, fmt.Errorf("failed to get download URL: %w", err)
@@ -1056,27 +1085,26 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 			req.TrackName,
 			req.ArtistName,
 			req.EmbedLyrics,
+			int64(req.DurationMS),
 		)
 	}()
 
 	// Download audio file with item ID for progress tracking
 	if err := downloader.DownloadFile(downloadURL, outputPath, req.ItemID); err != nil {
+		if errors.Is(err, ErrDownloadCancelled) {
+			return QobuzDownloadResult{}, ErrDownloadCancelled
+		}
 		return QobuzDownloadResult{}, fmt.Errorf("download failed: %w", err)
 	}
 
 	// Wait for parallel operations to complete
 	<-parallelDone
 
-	// Set progress to 100% and status to finalizing (before embedding)
-	// This makes the UI show "Finalizing..." while embedding happens
 	if req.ItemID != "" {
 		SetItemProgress(req.ItemID, 1.0, 0, 0)
 		SetItemFinalizing(req.ItemID)
 	}
 
-	// Embed metadata using parallel-fetched cover data
-	// Use metadata from the actual Qobuz track found (more accurate than request) but prefer
-	// requested Album Name to avoid ISRC version mismatches (e.g. Compilations vs Original)
 	albumName := track.Album.Title
 	if req.AlbumName != "" {
 		albumName = req.AlbumName
@@ -1094,7 +1122,6 @@ func downloadFromQobuz(req DownloadRequest) (QobuzDownloadResult, error) {
 		ISRC:        track.ISRC,
 	}
 
-	// Use cover data from parallel fetch
 	var coverData []byte
 	if parallelResult != nil && parallelResult.CoverData != nil {
 		coverData = parallelResult.CoverData

go_backend/ratelimit.go

@@ -30,31 +30,25 @@ func (r *RateLimiter) WaitForSlot() {
 
 	now := time.Now()
 
-	// Remove timestamps outside the window
 	r.cleanOldTimestamps(now)
 
-	// If under limit, record and return immediately
 	if len(r.timestamps) < r.maxRequests {
 		r.timestamps = append(r.timestamps, now)
 		return
 	}
 
-	// Calculate wait time until oldest timestamp expires
 	oldestTimestamp := r.timestamps[0]
 	waitUntil := oldestTimestamp.Add(r.window)
 	waitDuration := waitUntil.Sub(now)
 
 	if waitDuration > 0 {
-		// Release lock while waiting
 		r.mu.Unlock()
 		time.Sleep(waitDuration)
 		r.mu.Lock()
 
-		// Clean again after waiting
 		r.cleanOldTimestamps(time.Now())
 	}
 
-	// Record this request
 	r.timestamps = append(r.timestamps, time.Now())
 }
 

go_backend/songlink.go

@@ -31,7 +31,6 @@ type TrackAvailability struct {
 }
 
 var (
-	// Global SongLink client instance for connection reuse
 	globalSongLinkClient *SongLinkClient
 	songLinkClientOnce   sync.Once
 )
@@ -40,7 +39,7 @@ var (
 func NewSongLinkClient() *SongLinkClient {
 	songLinkClientOnce.Do(func() {
 		globalSongLinkClient = &SongLinkClient{
-			client: NewHTTPClientWithTimeout(SongLinkTimeout), // 30s timeout
+			client: NewHTTPClientWithTimeout(SongLinkTimeout),
 		}
 	})
 	return globalSongLinkClient
@@ -48,15 +47,12 @@ func NewSongLinkClient() *SongLinkClient {
 
 // CheckTrackAvailability checks track availability on streaming platforms
 func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc string) (*TrackAvailability, error) {
-	// Validate Spotify ID format (should be 22 characters alphanumeric)
 	if spotifyTrackID == "" {
 		return nil, fmt.Errorf("spotify track ID is empty")
 	}
 	
-	// Use global rate limiter - blocks until request is allowed
 	songLinkRateLimiter.WaitForSlot()
 
-	// Build API URL
 	spotifyBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9vcGVuLnNwb3RpZnkuY29tL3RyYWNrLw==")
 	spotifyURL := fmt.Sprintf("%s%s", string(spotifyBase), spotifyTrackID)
 
@@ -68,7 +64,6 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 		return nil, fmt.Errorf("failed to create request: %w", err)
 	}
 
-	// Use retry logic with User-Agent
 	retryConfig := DefaultRetryConfig()
 	resp, err := DoRequestWithRetry(s.client, req, retryConfig)
 	if err != nil {
@@ -76,7 +71,6 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 	}
 	defer resp.Body.Close()
 
-	// Handle specific error codes
 	if resp.StatusCode == 400 {
 		return nil, fmt.Errorf("track not found on SongLink (invalid Spotify ID or track unavailable)")
 	}
@@ -109,27 +103,22 @@ func (s *SongLinkClient) CheckTrackAvailability(spotifyTrackID string, isrc stri
 		SpotifyID: spotifyTrackID,
 	}
 
-	// Check Tidal
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
 	}
 
-	// Check Amazon
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
 		availability.Amazon = true
 		availability.AmazonURL = amazonLink.URL
 	}
 
-	// Check Deezer
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.Deezer = true
 		availability.DeezerURL = deezerLink.URL
-		// Extract Deezer ID from URL (e.g., https://www.deezer.com/track/123456)
 		availability.DeezerID = extractDeezerIDFromURL(deezerLink.URL)
 	}
 
-	// Check Qobuz using ISRC (SongLink doesn't support Qobuz directly)
 	if isrc != "" {
 		availability.Qobuz = checkQobuzAvailability(isrc)
 	}
@@ -191,12 +180,9 @@ func checkQobuzAvailability(isrc string) bool {
 
 // extractDeezerIDFromURL extracts Deezer track/album/artist ID from URL
 func extractDeezerIDFromURL(deezerURL string) string {
-	// URL format: https://www.deezer.com/track/123456 or https://www.deezer.com/en/track/123456
 	parts := strings.Split(deezerURL, "/")
 	if len(parts) > 0 {
-		// Get the last part which should be the ID
 		lastPart := parts[len(parts)-1]
-		// Remove any query parameters
 		if idx := strings.Index(lastPart, "?"); idx > 0 {
 			lastPart = lastPart[:idx]
 		}
@@ -274,7 +260,6 @@ func (s *SongLinkClient) CheckAlbumAvailability(spotifyAlbumID string) (*AlbumAv
 		SpotifyID: spotifyAlbumID,
 	}
 
-	// Check Deezer
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.Deezer = true
 		availability.DeezerURL = deezerLink.URL
@@ -309,13 +294,10 @@ func (s *SongLinkClient) CheckAvailabilityFromDeezer(deezerTrackID string) (*Tra
 		return nil, fmt.Errorf("deezer track ID is empty")
 	}
 	
-	// Use global rate limiter
 	songLinkRateLimiter.WaitForSlot()
 
-	// Build Deezer URL
 	deezerURL := fmt.Sprintf("https://www.deezer.com/track/%s", deezerTrackID)
 
-	// Build API URL using Deezer URL as source
 	apiBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9hcGkuc29uZy5saW5rL3YxLWFscGhhLjEvbGlua3M/dXJsPQ==")
 	apiURL := fmt.Sprintf("%s%s&userCountry=US", string(apiBase), url.QueryEscape(deezerURL))
 
@@ -371,25 +353,20 @@ func (s *SongLinkClient) CheckAvailabilityFromDeezer(deezerTrackID string) (*Tra
 		DeezerID: deezerTrackID,
 	}
 
-	// Check Spotify
 	if spotifyLink, ok := songLinkResp.LinksByPlatform["spotify"]; ok && spotifyLink.URL != "" {
-		// Extract Spotify ID from URL
 		availability.SpotifyID = extractSpotifyIDFromURL(spotifyLink.URL)
 	}
 
-	// Check Tidal
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
 	}
 
-	// Check Amazon
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
 		availability.Amazon = true
 		availability.AmazonURL = amazonLink.URL
 	}
 
-	// Check Deezer URL
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.DeezerURL = deezerLink.URL
 	}
@@ -459,24 +436,20 @@ func (s *SongLinkClient) CheckAvailabilityByPlatform(platform, entityType, entit
 
 	availability := &TrackAvailability{}
 
-	// Check Spotify
 	if spotifyLink, ok := songLinkResp.LinksByPlatform["spotify"]; ok && spotifyLink.URL != "" {
 		availability.SpotifyID = extractSpotifyIDFromURL(spotifyLink.URL)
 	}
 
-	// Check Tidal
 	if tidalLink, ok := songLinkResp.LinksByPlatform["tidal"]; ok && tidalLink.URL != "" {
 		availability.Tidal = true
 		availability.TidalURL = tidalLink.URL
 	}
 
-	// Check Amazon
 	if amazonLink, ok := songLinkResp.LinksByPlatform["amazonMusic"]; ok && amazonLink.URL != "" {
 		availability.Amazon = true
 		availability.AmazonURL = amazonLink.URL
 	}
 
-	// Check Deezer
 	if deezerLink, ok := songLinkResp.LinksByPlatform["deezer"]; ok && deezerLink.URL != "" {
 		availability.Deezer = true
 		availability.DeezerURL = deezerLink.URL
@@ -488,10 +461,8 @@ func (s *SongLinkClient) CheckAvailabilityByPlatform(platform, entityType, entit
 
 // extractSpotifyIDFromURL extracts Spotify track ID from URL
 func extractSpotifyIDFromURL(spotifyURL string) string {
-	// URL format: https://open.spotify.com/track/0Jcij1eWd5bDMU5iPbxe2i
 	parts := strings.Split(spotifyURL, "/track/")
 	if len(parts) > 1 {
-		// Get the ID part and remove any query parameters
 		idPart := parts[1]
 		if idx := strings.Index(idPart, "?"); idx > 0 {
 			idPart = idPart[:idx]

go_backend/spotify.go

@@ -84,12 +84,10 @@ func HasSpotifyCredentials() bool {
 	credentialsMu.RLock()
 	defer credentialsMu.RUnlock()
 
-	// Check custom credentials first
 	if customClientID != "" && customClientSecret != "" {
 		return true
 	}
 
-	// Check environment variables
 	if os.Getenv("SPOTIFY_CLIENT_ID") != "" && os.Getenv("SPOTIFY_CLIENT_SECRET") != "" {
 		return true
 	}
@@ -102,12 +100,10 @@ func getCredentials() (string, string, error) {
 	credentialsMu.RLock()
 	defer credentialsMu.RUnlock()
 
-	// Check custom credentials first
 	if customClientID != "" && customClientSecret != "" {
 		return customClientID, customClientSecret, nil
 	}
 
-	// Check environment variables
 	clientID := os.Getenv("SPOTIFY_CLIENT_ID")
 	clientSecret := os.Getenv("SPOTIFY_CLIENT_SECRET")
 
@@ -115,14 +111,12 @@ func getCredentials() (string, string, error) {
 		return clientID, clientSecret, nil
 	}
 
-	// No credentials available
 	return "", "", ErrNoSpotifyCredentials
 }
 
 // NewSpotifyMetadataClient creates a new Spotify client
 // Returns error if credentials are not configured
 func NewSpotifyMetadataClient() (*SpotifyMetadataClient, error) {
-	// Get credentials - will error if not configured
 	clientID, clientSecret, err := getCredentials()
 	if err != nil {
 		return nil, err
@@ -131,7 +125,7 @@ func NewSpotifyMetadataClient() (*SpotifyMetadataClient, error) {
 	src := rand.NewSource(time.Now().UnixNano())
 
 	c := &SpotifyMetadataClient{
-		httpClient:   NewHTTPClientWithTimeout(15 * time.Second), // Use shared transport for connection pooling
+		httpClient:   NewHTTPClientWithTimeout(15 * time.Second),
 		clientID:     clientID,
 		clientSecret: clientSecret,
 		rng:          rand.New(src),
@@ -393,10 +387,8 @@ func (c *SpotifyMetadataClient) SearchTracks(ctx context.Context, query string,
 
 // SearchAll searches for tracks and artists on Spotify
 func (c *SpotifyMetadataClient) SearchAll(ctx context.Context, query string, trackLimit, artistLimit int) (*SearchAllResult, error) {
-	// Create cache key
 	cacheKey := fmt.Sprintf("all:%s:%d:%d", query, trackLimit, artistLimit)
 
-	// Check cache first
 	c.cacheMu.RLock()
 	if entry, ok := c.searchCache[cacheKey]; ok && !entry.isExpired() {
 		c.cacheMu.RUnlock()
@@ -456,7 +448,6 @@ func (c *SpotifyMetadataClient) SearchAll(ctx context.Context, query string, tra
 		})
 	}
 
-	// Limit artists to artistLimit
 	artistCount := len(response.Artists.Items)
 	if artistCount > artistLimit {
 		artistCount = artistLimit
@@ -473,7 +464,6 @@ func (c *SpotifyMetadataClient) SearchAll(ctx context.Context, query string, tra
 		})
 	}
 
-	// Store in cache
 	c.cacheMu.Lock()
 	c.searchCache[cacheKey] = &cacheEntry{
 		data:      result,
@@ -510,7 +500,6 @@ func (c *SpotifyMetadataClient) fetchTrack(ctx context.Context, trackID, token s
 }
 
 func (c *SpotifyMetadataClient) fetchAlbum(ctx context.Context, albumID, token string) (*AlbumResponsePayload, error) {
-	// Check cache first
 	c.cacheMu.RLock()
 	if entry, ok := c.albumCache[albumID]; ok && !entry.isExpired() {
 		c.cacheMu.RUnlock()
@@ -610,7 +599,6 @@ func (c *SpotifyMetadataClient) fetchAlbum(ctx context.Context, albumID, token s
 		TrackList: tracks,
 	}
 
-	// Store in cache
 	c.cacheMu.Lock()
 	c.albumCache[albumID] = &cacheEntry{
 		data:      result,
@@ -768,7 +756,6 @@ func (c *SpotifyMetadataClient) fetchPlaylist(ctx context.Context, playlistID, t
 }
 
 func (c *SpotifyMetadataClient) fetchArtist(ctx context.Context, artistID, token string) (*ArtistResponsePayload, error) {
-	// Check cache first
 	c.cacheMu.RLock()
 	if entry, ok := c.artistCache[artistID]; ok && !entry.isExpired() {
 		c.cacheMu.RUnlock()
@@ -856,7 +843,6 @@ func (c *SpotifyMetadataClient) fetchArtist(ctx context.Context, artistID, token
 		Albums:     albums,
 	}
 
-	// Store in cache
 	c.cacheMu.Lock()
 	c.artistCache[artistID] = &cacheEntry{
 		data:      result,

go_backend/tidal.go

@@ -2,9 +2,11 @@ package gobackend
 
 import (
 	"bufio"
+	"context"
 	"encoding/base64"
 	"encoding/json"
 	"encoding/xml"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -29,7 +31,6 @@ type TidalDownloader struct {
 }
 
 var (
-	// Global Tidal downloader instance for token reuse
 	globalTidalDownloader *TidalDownloader
 	tidalDownloaderOnce   sync.Once
 )
@@ -116,7 +117,6 @@ func NewTidalDownloader() *TidalDownloader {
 			clientSecret: string(clientSecret),
 		}
 
-		// Get first available API
 		apis := globalTidalDownloader.GetAvailableAPIs()
 		if len(apis) > 0 {
 			globalTidalDownloader.apiURL = apis[0]
@@ -128,16 +128,14 @@ func NewTidalDownloader() *TidalDownloader {
 // GetAvailableAPIs returns list of available Tidal APIs
 func (t *TidalDownloader) GetAvailableAPIs() []string {
 	encodedAPIs := []string{
-		// Priority 1: APIs that return FULL tracks (not PREVIEW)
-		"dGlkYWwua2lub3BsdXMub25saW5l", // tidal.kinoplus.online - returns FULL
-		"dGlkYWwtYXBpLmJpbmltdW0ub3Jn", // tidal-api.binimum.org
-		"dHJpdG9uLnNxdWlkLnd0Zg==",     // triton.squid.wtf
-		// Priority 2: qqdl.site APIs (often return PREVIEW only)
-		"dm9nZWwucXFkbC5zaXRl", // vogel.qqdl.site
-		"bWF1cy5xcWRsLnNpdGU=", // maus.qqdl.site
-		"aHVuZC5xcWRsLnNpdGU=", // hund.qqdl.site
-		"a2F0emUucXFkbC5zaXRl", // katze.qqdl.site
-		"d29sZi5xcWRsLnNpdGU=", // wolf.qqdl.site
+		"dGlkYWwua2lub3BsdXMub25saW5l",
+		"dGlkYWwtYXBpLmJpbmltdW0ub3Jn",
+		"dHJpdG9uLnNxdWlkLnd0Zg==",
+		"dm9nZWwucXFkbC5zaXRl",
+		"bWF1cy5xcWRsLnNpdGU=",
+		"aHVuZC5xcWRsLnNpdGU=",
+		"a2F0emUucXFkbC5zaXRl",
+		"d29sZi5xcWRsLnNpdGU=",
 	}
 
 	var apis []string
@@ -157,7 +155,6 @@ func (t *TidalDownloader) GetAccessToken() (string, error) {
 	t.tokenMu.Lock()
 	defer t.tokenMu.Unlock()
 
-	// Return cached token if still valid (with 60s buffer)
 	if t.cachedToken != "" && time.Now().Add(60*time.Second).Before(t.tokenExpiresAt) {
 		return t.cachedToken, nil
 	}
@@ -192,7 +189,6 @@ func (t *TidalDownloader) GetAccessToken() (string, error) {
 		return "", err
 	}
 
-	// Cache the token
 	t.cachedToken = result.AccessToken
 	if result.ExpiresIn > 0 {
 		t.tokenExpiresAt = time.Now().Add(time.Duration(result.ExpiresIn) * time.Second)
@@ -384,22 +380,17 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 		queries = append(queries, artistName+" "+trackName)
 	}
 
-	// Strategy 2: Track name only
 	if trackName != "" {
 		queries = append(queries, trackName)
 	}
 
-	// Strategy 3: Romaji versions if Japanese detected (NEW - from PC version)
 	if ContainsJapanese(trackName) || ContainsJapanese(artistName) {
-		// Convert to romaji (hiragana/katakana only, kanji stays)
 		romajiTrack := JapaneseToRomaji(trackName)
 		romajiArtist := JapaneseToRomaji(artistName)
 
-		// Clean and remove ALL non-ASCII characters (including kanji)
 		cleanRomajiTrack := CleanToASCII(romajiTrack)
 		cleanRomajiArtist := CleanToASCII(romajiArtist)
 
-		// Artist + Track romaji (cleaned to ASCII only)
 		if cleanRomajiArtist != "" && cleanRomajiTrack != "" {
 			romajiQuery := cleanRomajiArtist + " " + cleanRomajiTrack
 			if !containsQuery(queries, romajiQuery) {
@@ -408,14 +399,12 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 			}
 		}
 
-		// Track romaji only (cleaned)
 		if cleanRomajiTrack != "" && cleanRomajiTrack != trackName {
 			if !containsQuery(queries, cleanRomajiTrack) {
 				queries = append(queries, cleanRomajiTrack)
 			}
 		}
 
-		// Also try with partial romaji (artist + cleaned track)
 		if artistName != "" && cleanRomajiTrack != "" {
 			partialQuery := artistName + " " + cleanRomajiTrack
 			if !containsQuery(queries, partialQuery) {
@@ -424,7 +413,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 		}
 	}
 
-	// Strategy 4: Artist only as last resort
 	if artistName != "" {
 		artistOnly := CleanToASCII(JapaneseToRomaji(artistName))
 		if artistOnly != "" && !containsQuery(queries, artistOnly) {
@@ -434,7 +422,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 
 	searchBase, _ := base64.StdEncoding.DecodeString("aHR0cHM6Ly9hcGkudGlkYWwuY29tL3YxL3NlYXJjaC90cmFja3M/cXVlcnk9")
 
-	// Collect all search results from all queries
 	var allTracks []TidalTrack
 	searchedQueries := make(map[string]bool)
 
@@ -484,7 +471,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 				for i := range result.Items {
 					if result.Items[i].ISRC == spotifyISRC {
 						track := &result.Items[i]
-						// Verify duration if provided
 						if expectedDuration > 0 {
 							durationDiff := track.Duration - expectedDuration
 							if durationDiff < 0 {
@@ -494,7 +480,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 								GoLog("[Tidal] ✓ ISRC match: '%s' (duration verified)\n", track.Title)
 								return track, nil
 							}
-							// Duration mismatch, continue searching
 							GoLog("[Tidal] ISRC match but duration mismatch (expected %ds, got %ds), continuing...\n",
 								expectedDuration, track.Duration)
 						} else {
@@ -513,7 +498,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 		return nil, fmt.Errorf("no tracks found for any search query")
 	}
 
-	// Priority 1: Match by ISRC (exact match) WITH title verification
 	if spotifyISRC != "" {
 		GoLog("[Tidal] Looking for ISRC match: %s\n", spotifyISRC)
 		var isrcMatches []*TidalTrack
@@ -525,7 +509,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 		}
 
 		if len(isrcMatches) > 0 {
-			// Verify duration first (most important check)
 			if expectedDuration > 0 {
 				var durationVerifiedMatches []*TidalTrack
 				for _, track := range isrcMatches {
@@ -533,37 +516,31 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 					if durationDiff < 0 {
 						durationDiff = -durationDiff
 					}
-					// Allow 3 seconds tolerance for duration (same as PC version)
 					if durationDiff <= 3 {
 						durationVerifiedMatches = append(durationVerifiedMatches, track)
 					}
 				}
 
 				if len(durationVerifiedMatches) > 0 {
-					// Return first duration-verified match
 					GoLog("[Tidal] ✓ ISRC match with duration verification: '%s' (expected %ds, found %ds)\n",
 						durationVerifiedMatches[0].Title, expectedDuration, durationVerifiedMatches[0].Duration)
 					return durationVerifiedMatches[0], nil
 				}
 
-				// ISRC matches but duration doesn't - this is likely wrong version
 				GoLog("[Tidal] WARNING: ISRC %s found but duration mismatch. Expected=%ds, Found=%ds. Rejecting.\n",
 					spotifyISRC, expectedDuration, isrcMatches[0].Duration)
 				return nil, fmt.Errorf("ISRC found but duration mismatch: expected %ds, found %ds (likely different version/edit)",
 					expectedDuration, isrcMatches[0].Duration)
 			}
 
-			// No duration to verify, just return first ISRC match
 			GoLog("[Tidal] ✓ ISRC match (no duration verification): '%s'\n", isrcMatches[0].Title)
 			return isrcMatches[0], nil
 		}
 
-		// If ISRC was provided but no match found, return error
 		GoLog("[Tidal] ✗ No ISRC match found for: %s\n", spotifyISRC)
 		return nil, fmt.Errorf("ISRC mismatch: no track found with ISRC %s on Tidal", spotifyISRC)
 	}
 
-	// Priority 2: Match by duration (within tolerance) + prefer best quality
 	if expectedDuration > 0 {
 		tolerance := 3 // 3 seconds tolerance
 		var durationMatches []*TidalTrack
@@ -580,7 +557,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 		}
 
 		if len(durationMatches) > 0 {
-			// Find best quality among duration matches
 			bestMatch := durationMatches[0]
 			for _, track := range durationMatches {
 				for _, tag := range track.MediaMetadata.Tags {
@@ -596,7 +572,6 @@ func (t *TidalDownloader) SearchTrackByMetadataWithISRC(trackName, artistName, s
 		}
 	}
 
-	// Priority 3: Just take the best quality from first results
 	bestMatch := &allTracks[0]
 	for i := range allTracks {
 		track := &allTracks[i]
@@ -660,12 +635,10 @@ func getDownloadURLParallel(apis []string, trackID int64, quality string) (strin
 	resultChan := make(chan tidalAPIResult, len(apis))
 	startTime := time.Now()
 
-	// Start all requests in parallel
 	for _, apiURL := range apis {
 		go func(api string) {
 			reqStart := time.Now()
 
-			// Create client with timeout for parallel requests
 			client := &http.Client{
 				Timeout: 15 * time.Second,
 			}
@@ -696,7 +669,6 @@ func getDownloadURLParallel(apis []string, trackID int64, quality string) (strin
 				return
 			}
 
-			// Try v2 format first (object with manifest)
 			var v2Response TidalAPIResponseV2
 			if err := json.Unmarshal(body, &v2Response); err == nil && v2Response.Data.Manifest != "" {
 				// IMPORTANT: Reject PREVIEW responses - we need FULL tracks
@@ -714,7 +686,6 @@ func getDownloadURLParallel(apis []string, trackID int64, quality string) (strin
 				return
 			}
 
-			// Fallback to v1 format (array with OriginalTrackUrl)
 			var v1Responses []struct {
 				OriginalTrackURL string `json:"OriginalTrackUrl"`
 			}
@@ -736,15 +707,11 @@ func getDownloadURLParallel(apis []string, trackID int64, quality string) (strin
 		}(apiURL)
 	}
 
-	// Collect results - return first success
 	var errors []string
-	var firstSuccess *tidalAPIResult
 
 	for i := 0; i < len(apis); i++ {
 		result := <-resultChan
-		if result.err == nil && firstSuccess == nil {
-			// First success - use this one
-			firstSuccess = &result
+		if result.err == nil {
 			GoLog("[Tidal] [Parallel] ✓ Got response from %s (%d-bit/%dHz) in %v\n",
 				result.apiURL, result.info.BitDepth, result.info.SampleRate, result.duration)
 
@@ -756,109 +723,19 @@ func getDownloadURLParallel(apis []string, trackID int64, quality string) (strin
 			}(len(apis) - i - 1)
 
 			GoLog("[Tidal] [Parallel] Total time: %v (first success)\n", time.Since(startTime))
-			return firstSuccess.apiURL, firstSuccess.info, nil
-		} else if result.err != nil {
-			errMsg := result.err.Error()
-			if len(errMsg) > 50 {
-				errMsg = errMsg[:50] + "..."
-			}
-			errors = append(errors, fmt.Sprintf("%s: %s", result.apiURL, errMsg))
+			return result.apiURL, result.info, nil
 		}
+		errMsg := result.err.Error()
+		if len(errMsg) > 50 {
+			errMsg = errMsg[:50] + "..."
+		}
+		errors = append(errors, fmt.Sprintf("%s: %s", result.apiURL, errMsg))
 	}
 
 	GoLog("[Tidal] [Parallel] All %d APIs failed in %v\n", len(apis), time.Since(startTime))
 	return "", TidalDownloadInfo{}, fmt.Errorf("all %d Tidal APIs failed. Errors: %v", len(apis), errors)
 }
 
-// getDownloadURLSequential requests download URL from APIs sequentially (fallback)
-// Returns the first successful result (supports both v1 and v2 API formats)
-func getDownloadURLSequential(apis []string, trackID int64, quality string) (string, TidalDownloadInfo, error) {
-	if len(apis) == 0 {
-		return "", TidalDownloadInfo{}, fmt.Errorf("no APIs available")
-	}
-
-	client := NewHTTPClientWithTimeout(DefaultTimeout)
-	retryConfig := DefaultRetryConfig()
-	var errors []string
-
-	for _, apiURL := range apis {
-		reqURL := fmt.Sprintf("%s/track/?id=%d&quality=%s", apiURL, trackID, quality)
-		GoLog("[Tidal] Trying API: %s\n", reqURL)
-
-		req, err := http.NewRequest("GET", reqURL, nil)
-		if err != nil {
-			errors = append(errors, BuildErrorMessage(apiURL, 0, err.Error()))
-			continue
-		}
-
-		resp, err := DoRequestWithRetry(client, req, retryConfig)
-		if err != nil {
-			GoLog("[Tidal] API error: %v\n", err)
-			errors = append(errors, BuildErrorMessage(apiURL, 0, err.Error()))
-			continue
-		}
-
-		body, err := ReadResponseBody(resp)
-		resp.Body.Close()
-		if err != nil {
-			GoLog("[Tidal] Read body error: %v\n", err)
-			errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, err.Error()))
-			continue
-		}
-
-		// Log response preview
-		bodyPreview := string(body)
-		if len(bodyPreview) > 300 {
-			bodyPreview = bodyPreview[:300] + "..."
-		}
-		GoLog("[Tidal] API response (HTTP %d): %s\n", resp.StatusCode, bodyPreview)
-
-		// Try v2 format first (object with manifest)
-		var v2Response TidalAPIResponseV2
-		if err := json.Unmarshal(body, &v2Response); err == nil && v2Response.Data.Manifest != "" {
-			GoLog("[Tidal] Got v2 response from %s - Quality: %d-bit/%dHz, AssetPresentation: %s\n",
-				apiURL, v2Response.Data.BitDepth, v2Response.Data.SampleRate, v2Response.Data.AssetPresentation)
-
-			// IMPORTANT: Reject PREVIEW responses - we need FULL tracks
-			if v2Response.Data.AssetPresentation == "PREVIEW" {
-				GoLog("[Tidal] ✗ Rejecting PREVIEW response from %s, trying next API...\n", apiURL)
-				errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, "returned PREVIEW instead of FULL"))
-				continue
-			}
-
-			GoLog("[Tidal] ✓ Got FULL track from %s\n", apiURL)
-			info := TidalDownloadInfo{
-				URL:        "MANIFEST:" + v2Response.Data.Manifest,
-				BitDepth:   v2Response.Data.BitDepth,
-				SampleRate: v2Response.Data.SampleRate,
-			}
-			return apiURL, info, nil
-		}
-
-		// Fallback to v1 format (array with OriginalTrackUrl)
-		var v1Responses []struct {
-			OriginalTrackURL string `json:"OriginalTrackUrl"`
-		}
-		if err := json.Unmarshal(body, &v1Responses); err == nil {
-			for _, item := range v1Responses {
-				if item.OriginalTrackURL != "" {
-					// v1 format doesn't have quality info, assume 16-bit/44.1kHz
-					info := TidalDownloadInfo{
-						URL:        item.OriginalTrackURL,
-						BitDepth:   16,
-						SampleRate: 44100,
-					}
-					return apiURL, info, nil
-				}
-			}
-		}
-
-		errors = append(errors, BuildErrorMessage(apiURL, resp.StatusCode, "no download URL or manifest in response"))
-	}
-
-	return "", TidalDownloadInfo{}, fmt.Errorf("all %d Tidal APIs failed. Errors: %v", len(apis), errors)
-}
-
 // GetDownloadURL gets download URL for a track - tries ALL APIs in parallel
 // "Siapa cepat dia dapat" - first successful response wins
 func (t *TidalDownloader) GetDownloadURL(trackID int64, quality string) (TidalDownloadInfo, error) {
@@ -867,7 +744,6 @@ func (t *TidalDownloader) GetDownloadURL(trackID int64, quality string) (TidalDo
 		return TidalDownloadInfo{}, fmt.Errorf("no API URL configured")
 	}
 
-	// Use parallel approach - request from all APIs simultaneously
 	_, info, err := getDownloadURLParallel(apis, trackID, quality)
 	if err != nil {
 		return TidalDownloadInfo{}, fmt.Errorf("failed to get download URL: %w", err)
@@ -885,16 +761,13 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 
 	manifestStr := string(manifestBytes)
 
-	// Debug: log first 500 chars of manifest for debugging
 	manifestPreview := manifestStr
 	if len(manifestPreview) > 500 {
 		manifestPreview = manifestPreview[:500] + "..."
 	}
 	GoLog("[Tidal] Manifest content: %s\n", manifestPreview)
 
-	// Check if it's BTS format (JSON) or DASH format (XML)
 	if strings.HasPrefix(manifestStr, "{") {
-		// BTS format - JSON with direct URLs
 		var btsManifest TidalBTSManifest
 		if err := json.Unmarshal(manifestBytes, &btsManifest); err != nil {
 			return "", "", nil, fmt.Errorf("failed to parse BTS manifest: %w", err)
@@ -907,7 +780,6 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 		return btsManifest.URLs[0], "", nil, nil
 	}
 
-	// DASH format - XML with segments
 	var mpd MPD
 	if err := xml.Unmarshal(manifestBytes, &mpd); err != nil {
 		return "", "", nil, fmt.Errorf("failed to parse manifest XML: %w", err)
@@ -918,7 +790,6 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 	mediaTemplate := segTemplate.Media
 
 	if initURL == "" || mediaTemplate == "" {
-		// Fallback: try regex extraction
 		initRe := regexp.MustCompile(`initialization="([^"]+)"`)
 		mediaRe := regexp.MustCompile(`media="([^"]+)"`)
 
@@ -934,11 +805,9 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 		return "", "", nil, fmt.Errorf("no initialization URL found in manifest")
 	}
 
-	// Unescape HTML entities in URLs
 	initURL = strings.ReplaceAll(initURL, "&amp;", "&")
 	mediaTemplate = strings.ReplaceAll(mediaTemplate, "&amp;", "&")
 
-	// Calculate segment count from timeline
 	segmentCount := 0
 	GoLog("[Tidal] XML parsed segments: %d entries in timeline\n", len(segTemplate.Timeline.Segments))
 	for i, seg := range segTemplate.Timeline.Segments {
@@ -947,10 +816,8 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 	}
 	GoLog("[Tidal] Segment count from XML: %d\n", segmentCount)
 
-	// If no segments found via XML, try regex
 	if segmentCount == 0 {
 		fmt.Println("[Tidal] No segments from XML, trying regex...")
-		// Match <S d="..." /> or <S d="..." r="..." />
 		segRe := regexp.MustCompile(`<S\s+d="(\d+)"(?:\s+r="(\d+)")?`)
 		matches := segRe.FindAllStringSubmatch(manifestStr, -1)
 		GoLog("[Tidal] Regex found %d segment entries\n", len(matches))
@@ -967,7 +834,6 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 		GoLog("[Tidal] Total segments from regex: %d\n", segmentCount)
 	}
 
-	// Generate media URLs for each segment
 	for i := 1; i <= segmentCount; i++ {
 		mediaURL := strings.ReplaceAll(mediaTemplate, "$Number$", fmt.Sprintf("%d", i))
 		mediaURLs = append(mediaURLs, mediaURL)
@@ -978,29 +844,43 @@ func parseManifest(manifestB64 string) (directURL string, initURL string, mediaU
 
 // DownloadFile downloads a file from URL with progress tracking
 func (t *TidalDownloader) DownloadFile(downloadURL, outputPath, itemID string) error {
-	// Handle manifest-based download (DASH/BTS)
+	ctx := context.Background()
+
 	if strings.HasPrefix(downloadURL, "MANIFEST:") {
-		// Initialize progress tracking for manifest downloads
 		if itemID != "" {
 			StartItemProgress(itemID)
 			defer CompleteItemProgress(itemID)
+			ctx = initDownloadCancel(itemID)
+			defer clearDownloadCancel(itemID)
 		}
-		return t.downloadFromManifest(strings.TrimPrefix(downloadURL, "MANIFEST:"), outputPath, itemID)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
+		return t.downloadFromManifest(ctx, strings.TrimPrefix(downloadURL, "MANIFEST:"), outputPath, itemID)
 	}
 
 	// Initialize item progress for direct downloads
 	if itemID != "" {
 		StartItemProgress(itemID)
 		defer CompleteItemProgress(itemID)
+		ctx = initDownloadCancel(itemID)
+		defer clearDownloadCancel(itemID)
 	}
 
-	req, err := http.NewRequest("GET", downloadURL, nil)
+	if isDownloadCancelled(itemID) {
+		return ErrDownloadCancelled
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "GET", downloadURL, nil)
 	if err != nil {
 		return fmt.Errorf("failed to create request: %w", err)
 	}
 
 	resp, err := DoRequestWithUserAgent(t.client, req)
 	if err != nil {
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		return err
 	}
 	defer resp.Body.Close()
@@ -1010,7 +890,6 @@ func (t *TidalDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 	}
 
 	expectedSize := resp.ContentLength
-	// Set total bytes if available
 	if expectedSize > 0 && itemID != "" {
 		SetItemBytesTotal(itemID, expectedSize)
 	}
@@ -1020,26 +899,24 @@ func (t *TidalDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 		return err
 	}
 
-	// Use buffered writer for better performance (256KB buffer)
 	bufWriter := bufio.NewWriterSize(out, 256*1024)
 
-	// Use item progress writer with buffered output
 	var written int64
 	if itemID != "" {
 		progressWriter := NewItemProgressWriter(bufWriter, itemID)
 		written, err = io.Copy(progressWriter, resp.Body)
 	} else {
-		// Fallback: direct copy without progress tracking
 		written, err = io.Copy(bufWriter, resp.Body)
 	}
 
-	// Flush buffer before checking for errors
 	flushErr := bufWriter.Flush()
 	closeErr := out.Close()
 
-	// Check for any errors
 	if err != nil {
 		os.Remove(outputPath)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		return fmt.Errorf("download interrupted: %w", err)
 	}
 	if flushErr != nil {
@@ -1051,7 +928,6 @@ func (t *TidalDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 		return fmt.Errorf("failed to close file: %w", closeErr)
 	}
 
-	// Verify file size if Content-Length was provided
 	if expectedSize > 0 && written != expectedSize {
 		os.Remove(outputPath)
 		return fmt.Errorf("incomplete download: expected %d bytes, got %d bytes", expectedSize, written)
@@ -1060,7 +936,7 @@ func (t *TidalDownloader) DownloadFile(downloadURL, outputPath, itemID string) e
 	return nil
 }
 
-func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID string) error {
+func (t *TidalDownloader) downloadFromManifest(ctx context.Context, manifestB64, outputPath, itemID string) error {
 	fmt.Println("[Tidal] Parsing manifest...")
 	directURL, initURL, mediaURLs, err := parseManifest(manifestB64)
 	if err != nil {
@@ -1074,12 +950,15 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 		Timeout: 120 * time.Second,
 	}
 
-	// If we have a direct URL (BTS format), download directly with progress tracking
 	if directURL != "" {
 		GoLog("[Tidal] BTS format - downloading from direct URL: %s...\n", directURL[:min(80, len(directURL))])
 		// Note: Progress tracking is initialized by the caller (DownloadFile)
 
-		req, err := http.NewRequest("GET", directURL, nil)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
+
+		req, err := http.NewRequestWithContext(ctx, "GET", directURL, nil)
 		if err != nil {
 			GoLog("[Tidal] BTS request creation failed: %v\n", err)
 			return fmt.Errorf("failed to create request: %w", err)
@@ -1087,6 +966,9 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 
 		resp, err := client.Do(req)
 		if err != nil {
+			if isDownloadCancelled(itemID) {
+				return ErrDownloadCancelled
+			}
 			GoLog("[Tidal] BTS download failed: %v\n", err)
 			return fmt.Errorf("failed to download file: %w", err)
 		}
@@ -1099,7 +981,6 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 		GoLog("[Tidal] BTS response OK, Content-Length: %d\n", resp.ContentLength)
 
 		expectedSize := resp.ContentLength
-		// Set total bytes for progress tracking
 		if expectedSize > 0 && itemID != "" {
 			SetItemBytesTotal(itemID, expectedSize)
 		}
@@ -1109,7 +990,6 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 			return fmt.Errorf("failed to create file: %w", err)
 		}
 
-		// Use item progress writer
 		var written int64
 		if itemID != "" {
 			progressWriter := NewItemProgressWriter(out, itemID)
@@ -1122,6 +1002,9 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 
 		if err != nil {
 			os.Remove(outputPath)
+			if isDownloadCancelled(itemID) {
+				return ErrDownloadCancelled
+			}
 			return fmt.Errorf("download interrupted: %w", err)
 		}
 		if closeErr != nil {
@@ -1129,7 +1012,6 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 			return fmt.Errorf("failed to close file: %w", closeErr)
 		}
 
-		// Verify file size if Content-Length was provided
 		if expectedSize > 0 && written != expectedSize {
 			os.Remove(outputPath)
 			return fmt.Errorf("incomplete download: expected %d bytes, got %d bytes", expectedSize, written)
@@ -1138,26 +1020,35 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 		return nil
 	}
 
-	// DASH format - download segments directly to M4A file (no temp file to avoid Android permission issues)
-	// On Android, we can't use ffmpeg, so we save as M4A directly
 	m4aPath := strings.TrimSuffix(outputPath, ".flac") + ".m4a"
 	GoLog("[Tidal] DASH format - downloading %d segments directly to: %s\n", len(mediaURLs), m4aPath)
 
-	// Note: Progress tracking is initialized by the caller (DownloadFile or downloadFromTidal)
-	// We just update progress here based on segment count
-
 	out, err := os.Create(m4aPath)
 	if err != nil {
 		GoLog("[Tidal] Failed to create M4A file: %v\n", err)
 		return fmt.Errorf("failed to create M4A file: %w", err)
 	}
 
-	// Download initialization segment
 	GoLog("[Tidal] Downloading init segment...\n")
-	resp, err := client.Get(initURL)
+	if isDownloadCancelled(itemID) {
+		out.Close()
+		os.Remove(m4aPath)
+		return ErrDownloadCancelled
+	}
+	req, err := http.NewRequestWithContext(ctx, "GET", initURL, nil)
 	if err != nil {
 		out.Close()
 		os.Remove(m4aPath)
+		GoLog("[Tidal] Init segment request failed: %v\n", err)
+		return fmt.Errorf("failed to create init segment request: %w", err)
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		out.Close()
+		os.Remove(m4aPath)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		GoLog("[Tidal] Init segment download failed: %v\n", err)
 		return fmt.Errorf("failed to download init segment: %w", err)
 	}
@@ -1173,27 +1064,44 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 	if err != nil {
 		out.Close()
 		os.Remove(m4aPath)
+		if isDownloadCancelled(itemID) {
+			return ErrDownloadCancelled
+		}
 		GoLog("[Tidal] Init segment write failed: %v\n", err)
 		return fmt.Errorf("failed to write init segment: %w", err)
 	}
 
-	// Download media segments with progress
 	totalSegments := len(mediaURLs)
 	for i, mediaURL := range mediaURLs {
+		if isDownloadCancelled(itemID) {
+			out.Close()
+			os.Remove(m4aPath)
+			return ErrDownloadCancelled
+		}
+
 		if i%10 == 0 || i == totalSegments-1 {
 			GoLog("[Tidal] Downloading segment %d/%d...\n", i+1, totalSegments)
 		}
 
-		// Update progress based on segment count
 		if itemID != "" {
 			progress := float64(i+1) / float64(totalSegments)
 			SetItemProgress(itemID, progress, 0, 0)
 		}
 
-		resp, err := client.Get(mediaURL)
+		req, err := http.NewRequestWithContext(ctx, "GET", mediaURL, nil)
 		if err != nil {
 			out.Close()
 			os.Remove(m4aPath)
+			GoLog("[Tidal] Segment %d request failed: %v\n", i+1, err)
+			return fmt.Errorf("failed to create segment %d request: %w", i+1, err)
+		}
+		resp, err := client.Do(req)
+		if err != nil {
+			out.Close()
+			os.Remove(m4aPath)
+			if isDownloadCancelled(itemID) {
+				return ErrDownloadCancelled
+			}
 			GoLog("[Tidal] Segment %d download failed: %v\n", i+1, err)
 			return fmt.Errorf("failed to download segment %d: %w", i+1, err)
 		}
@@ -1209,6 +1117,9 @@ func (t *TidalDownloader) downloadFromManifest(manifestB64, outputPath, itemID s
 		if err != nil {
 			out.Close()
 			os.Remove(m4aPath)
+			if isDownloadCancelled(itemID) {
+				return ErrDownloadCancelled
+			}
 			GoLog("[Tidal] Segment %d write failed: %v\n", i+1, err)
 			return fmt.Errorf("failed to write segment %d: %w", i+1, err)
 		}
@@ -1253,24 +1164,27 @@ func artistsMatch(spotifyArtist, tidalArtist string) bool {
 		return true
 	}
 
-	// Check first artist (before comma or feat)
-	spotifyFirst := strings.Split(normSpotify, ",")[0]
-	spotifyFirst = strings.Split(spotifyFirst, " feat")[0]
-	spotifyFirst = strings.Split(spotifyFirst, " ft.")[0]
-	spotifyFirst = strings.TrimSpace(spotifyFirst)
+	// Split artists by common separators (comma, feat, ft., &, and)
+	// e.g., "RADWIMPS, Toko Miura" or "RADWIMPS feat. Toko Miura"
+	spotifyArtists := splitArtists(normSpotify)
+	tidalArtists := splitArtists(normTidal)
 
-	tidalFirst := strings.Split(normTidal, ",")[0]
-	tidalFirst = strings.Split(tidalFirst, " feat")[0]
-	tidalFirst = strings.Split(tidalFirst, " ft.")[0]
-	tidalFirst = strings.TrimSpace(tidalFirst)
-
-	if spotifyFirst == tidalFirst {
-		return true
-	}
-
-	// Check if first artist is contained in the other
-	if strings.Contains(spotifyFirst, tidalFirst) || strings.Contains(tidalFirst, spotifyFirst) {
-		return true
+	// Check if ANY expected artist matches ANY found artist
+	for _, exp := range spotifyArtists {
+		for _, fnd := range tidalArtists {
+			if exp == fnd {
+				return true
+			}
+			// Also check contains for partial matches
+			if strings.Contains(exp, fnd) || strings.Contains(fnd, exp) {
+				return true
+			}
+			// Check same words different order
+			if sameWordsUnordered(exp, fnd) {
+				GoLog("[Tidal] Artist names have same words in different order: '%s' vs '%s'\n", exp, fnd)
+				return true
+			}
+		}
 	}
 
 	// If scripts are TRULY different (Latin vs CJK/Arabic/Cyrillic), assume match (transliteration)
@@ -1286,6 +1200,67 @@ func artistsMatch(spotifyArtist, tidalArtist string) bool {
 	return false
 }
 
+// splitArtists splits artist string by common separators
+func splitArtists(artists string) []string {
+	// Replace common separators with a standard one
+	normalized := artists
+	normalized = strings.ReplaceAll(normalized, " feat. ", "|")
+	normalized = strings.ReplaceAll(normalized, " feat ", "|")
+	normalized = strings.ReplaceAll(normalized, " ft. ", "|")
+	normalized = strings.ReplaceAll(normalized, " ft ", "|")
+	normalized = strings.ReplaceAll(normalized, " & ", "|")
+	normalized = strings.ReplaceAll(normalized, " and ", "|")
+	normalized = strings.ReplaceAll(normalized, ", ", "|")
+	normalized = strings.ReplaceAll(normalized, " x ", "|")
+
+	parts := strings.Split(normalized, "|")
+	result := make([]string, 0, len(parts))
+	for _, p := range parts {
+		trimmed := strings.TrimSpace(p)
+		if trimmed != "" {
+			result = append(result, trimmed)
+		}
+	}
+	return result
+}
+
+// sameWordsUnordered checks if two strings have the same words regardless of order
+// Useful for Japanese names: "Sawano Hiroyuki" vs "Hiroyuki Sawano"
+func sameWordsUnordered(a, b string) bool {
+	wordsA := strings.Fields(a)
+	wordsB := strings.Fields(b)
+
+	// Must have same number of words
+	if len(wordsA) != len(wordsB) || len(wordsA) == 0 {
+		return false
+	}
+
+	// Sort and compare
+	sortedA := make([]string, len(wordsA))
+	sortedB := make([]string, len(wordsB))
+	copy(sortedA, wordsA)
+	copy(sortedB, wordsB)
+
+	// Simple bubble sort (usually just 2-3 words)
+	for i := 0; i < len(sortedA)-1; i++ {
+		for j := i + 1; j < len(sortedA); j++ {
+			if sortedA[i] > sortedA[j] {
+				sortedA[i], sortedA[j] = sortedA[j], sortedA[i]
+			}
+			if sortedB[i] > sortedB[j] {
+				sortedB[i], sortedB[j] = sortedB[j], sortedB[i]
+			}
+		}
+	}
+
+	for i := range sortedA {
+		if sortedA[i] != sortedB[i] {
+			return false
+		}
+	}
+	return true
+}
+
 // titlesMatch checks if track titles are similar enough
 func titlesMatch(expectedTitle, foundTitle string) bool {
 	normExpected := strings.ToLower(strings.TrimSpace(expectedTitle))
@@ -1474,7 +1449,6 @@ func isLatinScript(s string) bool {
 func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 	downloader := NewTidalDownloader()
 
-	// Check for existing file first
 	if existingFile, exists := checkISRCExistsInternal(req.OutputDir, req.ISRC); exists {
 		return TidalDownloadResult{FilePath: "EXISTS:" + existingFile}, nil
 	}
@@ -1485,8 +1459,24 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 	var track *TidalTrack
 	var err error
 
+	// STRATEGY 0: Use pre-fetched Tidal ID from Odesli enrichment (highest priority)
+	if req.TidalID != "" {
+		GoLog("[Tidal] Using Tidal ID from Odesli enrichment: %s\n", req.TidalID)
+		// Parse track ID (could be a number or extracted from URL)
+		var trackID int64
+		if _, parseErr := fmt.Sscanf(req.TidalID, "%d", &trackID); parseErr == nil && trackID > 0 {
+			track, err = downloader.GetTrackInfoByID(trackID)
+			if err != nil {
+				GoLog("[Tidal] Failed to get track by Odesli ID %d: %v\n", trackID, err)
+				track = nil
+			} else if track != nil {
+				GoLog("[Tidal] Successfully found track via Odesli ID: '%s' by '%s'\n", track.Title, track.Artist.Name)
+			}
+		}
+	}
+
 	// OPTIMIZATION: Check cache first for track ID
-	if req.ISRC != "" {
+	if track == nil && req.ISRC != "" {
 		if cached := GetTrackIDCache().Get(req.ISRC); cached != nil && cached.TidalTrackID > 0 {
 			GoLog("[Tidal] Cache hit! Using cached track ID: %d\n", cached.TidalTrackID)
 			track, err = downloader.GetTrackInfoByID(cached.TidalTrackID)
@@ -1520,13 +1510,12 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 		}
 	}
 
-	// Strategy 2: Try SongLink only if ISRC search failed (slower but more accurate)
+	// Strategy 2: Try SongLink if we have Spotify ID
 	if track == nil && req.SpotifyID != "" {
 		GoLog("[Tidal] ISRC search failed, trying SongLink...\n")
 		var tidalURL string
 		var slErr error
 
-		// Check if SpotifyID is actually a Deezer ID (format: "deezer:xxxxx")
 		if strings.HasPrefix(req.SpotifyID, "deezer:") {
 			deezerID := strings.TrimPrefix(req.SpotifyID, "deezer:")
 			GoLog("[Tidal] Using Deezer ID for SongLink lookup: %s\n", deezerID)
@@ -1537,12 +1526,10 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 		}
 
 		if slErr == nil && tidalURL != "" {
-			// Extract track ID and get track info
 			trackID, idErr := downloader.GetTrackIDFromURL(tidalURL)
 			if idErr == nil {
 				track, err = downloader.GetTrackInfoByID(trackID)
 				if track != nil {
-					// Get artist name from track
 					tidalArtist := track.Artist.Name
 					if len(track.Artists) > 0 {
 						var artistNames []string
@@ -1552,7 +1539,6 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 						tidalArtist = strings.Join(artistNames, ", ")
 					}
 
-					// Verify artist matches (SongLink is already accurate, no title check needed)
 					if !artistsMatch(req.ArtistName, tidalArtist) {
 						GoLog("[Tidal] Artist mismatch from SongLink: expected '%s', got '%s'. Rejecting.\n",
 							req.ArtistName, tidalArtist)
@@ -1624,12 +1610,10 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 	}
 	GoLog("[Tidal] Match found: '%s' by '%s' (duration: %ds)\n", track.Title, tidalArtist, track.Duration)
 
-	// Cache the track ID for future use
 	if req.ISRC != "" {
 		GetTrackIDCache().SetTidal(req.ISRC, track.ID)
 	}
 
-	// Build filename
 	filename := buildFilenameFromTemplate(req.FilenameFormat, map[string]interface{}{
 		"title":  req.TrackName,
 		"artist": req.ArtistName,
@@ -1641,7 +1625,6 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 	filename = sanitizeFilename(filename) + ".flac"
 	outputPath := filepath.Join(req.OutputDir, filename)
 
-	// Check if file already exists (both FLAC and M4A)
 	if fileInfo, statErr := os.Stat(outputPath); statErr == nil && fileInfo.Size() > 0 {
 		return TidalDownloadResult{FilePath: "EXISTS:" + outputPath}, nil
 	}
@@ -1657,14 +1640,12 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 		os.Remove(tmpPath)
 	}
 
-	// Determine quality to use (default to LOSSLESS if not specified)
 	quality := req.Quality
 	if quality == "" {
 		quality = "LOSSLESS"
 	}
 	GoLog("[Tidal] Using quality: %s\n", quality)
 
-	// Get download URL using parallel API requests
 	downloadInfo, err := downloader.GetDownloadURL(track.ID, quality)
 	if err != nil {
 		return TidalDownloadResult{}, fmt.Errorf("failed to get download URL: %w", err)
@@ -1685,6 +1666,7 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 			req.TrackName,
 			req.ArtistName,
 			req.EmbedLyrics,
+			int64(req.DurationMS),
 		)
 	}()
 
@@ -1698,6 +1680,9 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 	}())
 
 	if err := downloader.DownloadFile(downloadInfo.URL, outputPath, req.ItemID); err != nil {
+		if errors.Is(err, ErrDownloadCancelled) {
+			return TidalDownloadResult{}, ErrDownloadCancelled
+		}
 		GoLog("[Tidal] Download failed with error: %v\n", err)
 		return TidalDownloadResult{}, fmt.Errorf("download failed: %w", err)
 	}
@@ -1706,18 +1691,13 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 	// Wait for parallel operations to complete
 	<-parallelDone
 
-	// Set progress to 100% and status to finalizing (before embedding)
-	// This makes the UI show "Finalizing..." while embedding happens
 	if req.ItemID != "" {
 		SetItemProgress(req.ItemID, 1.0, 0, 0)
 		SetItemFinalizing(req.ItemID)
 	}
 
-	// Check if file was saved as M4A (DASH stream) instead of FLAC
-	// downloadFromManifest saves DASH streams as .m4a (m4aPath already defined above)
 	actualOutputPath := outputPath
 	if _, err := os.Stat(m4aPath); err == nil {
-		// File was saved as M4A, use that path
 		actualOutputPath = m4aPath
 		GoLog("[Tidal] File saved as M4A (DASH stream): %s\n", actualOutputPath)
 	} else if _, err := os.Stat(outputPath); err != nil {
@@ -1738,7 +1718,6 @@ func downloadFromTidal(req DownloadRequest) (TidalDownloadResult, error) {
 		ISRC:        track.ISRC,         // Use actual ISRC from Tidal
 	}
 
-	// Use cover data from parallel fetch
 	var coverData []byte
 	if parallelResult != nil && parallelResult.CoverData != nil {
 		coverData = parallelResult.CoverData

ios/Runner/AppDelegate.swift

@@ -120,6 +120,12 @@ import Gobackend  // Import Go framework
             let itemId = args["item_id"] as! String
             GobackendClearItemProgress(itemId)
             return nil
+
+        case "cancelDownload":
+            let args = call.arguments as! [String: Any]
+            let itemId = args["item_id"] as! String
+            GobackendCancelDownload(itemId)
+            return nil
             
         case "setDownloadDirectory":
             let args = call.arguments as! [String: Any]
@@ -155,7 +161,8 @@ import Gobackend  // Import Go framework
             let spotifyId = args["spotify_id"] as! String
             let trackName = args["track_name"] as! String
             let artistName = args["artist_name"] as! String
-            let response = GobackendFetchLyrics(spotifyId, trackName, artistName, &error)
+            let durationMs = args["duration_ms"] as? Int64 ?? 0
+            let response = GobackendFetchLyrics(spotifyId, trackName, artistName, durationMs, &error)
             if let error = error { throw error }
             return response
             
@@ -165,7 +172,8 @@ import Gobackend  // Import Go framework
             let trackName = args["track_name"] as! String
             let artistName = args["artist_name"] as! String
             let filePath = args["file_path"] as? String ?? ""
-            let response = GobackendGetLyricsLRC(spotifyId, trackName, artistName, filePath, &error)
+            let durationMs = args["duration_ms"] as? Int64 ?? 0
+            let response = GobackendGetLyricsLRC(spotifyId, trackName, artistName, filePath, durationMs, &error)
             if let error = error { throw error }
             return response
             
@@ -503,6 +511,30 @@ import Gobackend  // Import Go framework
             if let error = error { throw error }
             return response
             
+        case "getAlbumWithExtension":
+            let args = call.arguments as! [String: Any]
+            let extensionId = args["extension_id"] as! String
+            let albumId = args["album_id"] as! String
+            let response = GobackendGetAlbumWithExtensionJSON(extensionId, albumId, &error)
+            if let error = error { throw error }
+            return response
+            
+        case "getPlaylistWithExtension":
+            let args = call.arguments as! [String: Any]
+            let extensionId = args["extension_id"] as! String
+            let playlistId = args["playlist_id"] as! String
+            let response = GobackendGetPlaylistWithExtensionJSON(extensionId, playlistId, &error)
+            if let error = error { throw error }
+            return response
+            
+        case "getArtistWithExtension":
+            let args = call.arguments as! [String: Any]
+            let extensionId = args["extension_id"] as! String
+            let artistId = args["artist_id"] as! String
+            let response = GobackendGetArtistWithExtensionJSON(extensionId, artistId, &error)
+            if let error = error { throw error }
+            return response
+            
         // Extension Post-Processing API
         case "runPostProcessing":
             let args = call.arguments as! [String: Any]
@@ -517,6 +549,47 @@ import Gobackend  // Import Go framework
             if let error = error { throw error }
             return response
             
+        // Extension Store
+        case "initExtensionStore":
+            let args = call.arguments as! [String: Any]
+            let cacheDir = args["cache_dir"] as! String
+            GobackendInitExtensionStoreJSON(cacheDir, &error)
+            if let error = error { throw error }
+            return nil
+            
+        case "getStoreExtensions":
+            let args = call.arguments as! [String: Any]
+            let forceRefresh = args["force_refresh"] as? Bool ?? false
+            let response = GobackendGetStoreExtensionsJSON(forceRefresh, &error)
+            if let error = error { throw error }
+            return response
+            
+        case "searchStoreExtensions":
+            let args = call.arguments as! [String: Any]
+            let query = args["query"] as? String ?? ""
+            let category = args["category"] as? String ?? ""
+            let response = GobackendSearchStoreExtensionsJSON(query, category, &error)
+            if let error = error { throw error }
+            return response
+            
+        case "getStoreCategories":
+            let response = GobackendGetStoreCategoriesJSON(&error)
+            if let error = error { throw error }
+            return response
+            
+        case "downloadStoreExtension":
+            let args = call.arguments as! [String: Any]
+            let extensionId = args["extension_id"] as! String
+            let destDir = args["dest_dir"] as! String
+            let response = GobackendDownloadStoreExtensionJSON(extensionId, destDir, &error)
+            if let error = error { throw error }
+            return response
+            
+        case "clearStoreCache":
+            GobackendClearStoreCacheJSON(&error)
+            if let error = error { throw error }
+            return nil
+            
         default:
             throw NSError(
                 domain: "SpotiFLAC",

ios/Runner/Info.plist

@@ -4,6 +4,23 @@
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleLocalizations</key>
+	<array>
+		<string>en</string>
+		<string>de</string>
+		<string>es</string>
+		<string>fr</string>
+		<string>hi</string>
+		<string>id</string>
+		<string>ja</string>
+		<string>ko</string>
+		<string>nl</string>
+		<string>pt</string>
+		<string>ru</string>
+		<string>zh</string>
+		<string>zh-Hans</string>
+		<string>zh-Hant</string>
+	</array>
 	<key>CFBundleDisplayName</key>
 	<string>SpotiFLAC</string>
 	<key>CFBundleExecutable</key>

l10n.yaml

@@ -0,0 +1,6 @@
+arb-dir: lib/l10n/arb
+template-arb-file: app_en.arb
+output-localization-file: app_localizations.dart
+output-class: AppLocalizations
+output-dir: lib/l10n
+nullable-getter: false

lib/app.dart

@@ -1,13 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:go_router/go_router.dart';
 import 'package:spotiflac_android/screens/main_shell.dart';
 import 'package:spotiflac_android/screens/setup_screen.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/theme/dynamic_color_wrapper.dart';
+import 'package:spotiflac_android/l10n/app_localizations.dart';
 
 final _routerProvider = Provider<GoRouter>((ref) {
-  // Only watch isFirstLaunch to prevent router rebuild on other settings changes
   final isFirstLaunch = ref.watch(settingsProvider.select((s) => s.isFirstLaunch));
   
   return GoRouter(
@@ -31,6 +32,12 @@ class SpotiFLACApp extends ConsumerWidget {
   @override
   Widget build(BuildContext context, WidgetRef ref) {
     final router = ref.watch(_routerProvider);
+    final localeString = ref.watch(settingsProvider.select((s) => s.locale));
+    
+    Locale? locale;
+    if (localeString != 'system') {
+      locale = Locale(localeString);
+    }
     
     return DynamicColorWrapper(
       builder: (lightTheme, darkTheme, themeMode) {
@@ -43,6 +50,14 @@ class SpotiFLACApp extends ConsumerWidget {
           themeAnimationDuration: const Duration(milliseconds: 300),
           themeAnimationCurve: Curves.easeInOut,
           routerConfig: router,
+          locale: locale,
+          localizationsDelegates: const [
+            AppLocalizations.delegate,
+            GlobalMaterialLocalizations.delegate,
+            GlobalWidgetsLocalizations.delegate,
+            GlobalCupertinoLocalizations.delegate,
+          ],
+          supportedLocales: AppLocalizations.supportedLocales,
         );
       },
     );

lib/constants/app_info.dart

@@ -1,8 +1,8 @@
 /// App version and info constants
 /// Update version here only - all other files will reference this
 class AppInfo {
-  static const String version = '3.0.0-alpha.4';
-  static const String buildNumber = '53';
+  static const String version = '3.1.1';
+  static const String buildNumber = '60';
   static const String fullVersion = '$version+$buildNumber';
   
   

lib/l10n/arb/app_id.arb

@@ -0,0 +1,681 @@
+{
+  "@@locale": "id",
+  "@@last_modified": "2026-01-16",
+
+  "appName": "SpotiFLAC",
+  "appDescription": "Unduh lagu Spotify dalam kualitas lossless dari Tidal, Qobuz, dan Amazon Music.",
+
+  "navHome": "Beranda",
+  "navHistory": "Riwayat",
+  "navSettings": "Pengaturan",
+  "navStore": "Toko",
+
+  "homeTitle": "Beranda",
+  "homeSearchHint": "Tempel URL Spotify atau cari...",
+  "homeSearchHintExtension": "Cari dengan {extensionName}...",
+  "homeSubtitle": "Tempel link Spotify atau cari berdasarkan nama",
+  "homeSupports": "Mendukung: URL Track, Album, Playlist, Artis",
+  "homeRecent": "Terbaru",
+
+  "historyTitle": "Riwayat",
+  "historyDownloading": "Mengunduh ({count})",
+  "historyDownloaded": "Terunduh",
+  "historyFilterAll": "Semua",
+  "historyFilterAlbums": "Album",
+  "historyFilterSingles": "Single",
+  "historyTracksCount": "{count, plural, =1{1 lagu} other{{count} lagu}}",
+  "historyAlbumsCount": "{count, plural, =1{1 album} other{{count} album}}",
+  "historyNoDownloads": "Tidak ada riwayat unduhan",
+  "historyNoDownloadsSubtitle": "Lagu yang diunduh akan muncul di sini",
+  "historyNoAlbums": "Tidak ada unduhan album",
+  "historyNoAlbumsSubtitle": "Unduh beberapa lagu dari album untuk melihatnya di sini",
+  "historyNoSingles": "Tidak ada unduhan single",
+  "historyNoSinglesSubtitle": "Unduhan lagu satuan akan muncul di sini",
+
+  "settingsTitle": "Pengaturan",
+  "settingsDownload": "Unduhan",
+  "settingsAppearance": "Tampilan",
+  "settingsOptions": "Opsi",
+  "settingsExtensions": "Ekstensi",
+  "settingsAbout": "Tentang",
+
+  "downloadTitle": "Unduhan",
+  "downloadLocation": "Lokasi Unduhan",
+  "downloadLocationSubtitle": "Pilih tempat menyimpan file",
+  "downloadLocationDefault": "Lokasi default",
+  "downloadDefaultService": "Layanan Default",
+  "downloadDefaultServiceSubtitle": "Layanan yang digunakan untuk unduhan",
+  "downloadDefaultQuality": "Kualitas Default",
+  "downloadAskQuality": "Tanya Kualitas Sebelum Unduh",
+  "downloadAskQualitySubtitle": "Tampilkan pemilih kualitas untuk setiap unduhan",
+  "downloadFilenameFormat": "Format Nama File",
+  "downloadFolderOrganization": "Organisasi Folder",
+  "downloadSeparateSingles": "Pisahkan Single",
+  "downloadSeparateSinglesSubtitle": "Letakkan lagu satuan di folder terpisah",
+
+  "qualityBest": "Terbaik",
+  "qualityFlac": "FLAC",
+  "quality320": "320 kbps",
+  "quality128": "128 kbps",
+
+  "appearanceTitle": "Tampilan",
+  "appearanceTheme": "Tema",
+  "appearanceThemeSystem": "Sistem",
+  "appearanceThemeLight": "Terang",
+  "appearanceThemeDark": "Gelap",
+  "appearanceDynamicColor": "Warna Dinamis",
+  "appearanceDynamicColorSubtitle": "Gunakan warna dari wallpaper Anda",
+  "appearanceAccentColor": "Warna Aksen",
+  "appearanceHistoryView": "Tampilan Riwayat",
+  "appearanceHistoryViewList": "Daftar",
+  "appearanceHistoryViewGrid": "Grid",
+
+  "optionsTitle": "Opsi",
+  "optionsSearchSource": "Sumber Pencarian",
+  "optionsPrimaryProvider": "Provider Utama",
+  "optionsPrimaryProviderSubtitle": "Layanan yang digunakan saat mencari berdasarkan nama lagu.",
+  "optionsUsingExtension": "Menggunakan ekstensi: {extensionName}",
+  "optionsSwitchBack": "Ketuk Deezer atau Spotify untuk beralih dari ekstensi",
+  "optionsAutoFallback": "Auto Fallback",
+  "optionsAutoFallbackSubtitle": "Coba layanan lain jika unduhan gagal",
+  "optionsUseExtensionProviders": "Gunakan Provider Ekstensi",
+  "optionsUseExtensionProvidersOn": "Ekstensi akan dicoba terlebih dahulu",
+  "optionsUseExtensionProvidersOff": "Hanya menggunakan provider bawaan",
+  "optionsEmbedLyrics": "Sematkan Lirik",
+  "optionsEmbedLyricsSubtitle": "Sematkan lirik sinkron ke file FLAC",
+  "optionsMaxQualityCover": "Cover Kualitas Maksimal",
+  "optionsMaxQualityCoverSubtitle": "Unduh cover art resolusi tertinggi",
+  "optionsConcurrentDownloads": "Unduhan Bersamaan",
+  "optionsConcurrentSequential": "Berurutan (1 per waktu)",
+  "optionsConcurrentParallel": "{count} unduhan paralel",
+  "optionsConcurrentWarning": "Unduhan paralel dapat memicu pembatasan rate",
+  "optionsExtensionStore": "Toko Ekstensi",
+  "optionsExtensionStoreSubtitle": "Tampilkan tab Toko di navigasi",
+  "optionsCheckUpdates": "Periksa Pembaruan",
+  "optionsCheckUpdatesSubtitle": "Beritahu saat versi baru tersedia",
+  "optionsUpdateChannel": "Saluran Pembaruan",
+  "optionsUpdateChannelStable": "Hanya rilis stabil",
+  "optionsUpdateChannelPreview": "Dapatkan rilis preview",
+  "optionsUpdateChannelWarning": "Preview mungkin mengandung bug atau fitur belum lengkap",
+  "optionsClearHistory": "Hapus Riwayat Unduhan",
+  "optionsClearHistorySubtitle": "Hapus semua lagu dari riwayat",
+  "optionsDetailedLogging": "Log Detail",
+  "optionsDetailedLoggingOn": "Log detail sedang direkam",
+  "optionsDetailedLoggingOff": "Aktifkan untuk laporan bug",
+  "optionsSpotifyCredentials": "Kredensial Spotify",
+  "optionsSpotifyCredentialsConfigured": "Client ID: {clientId}...",
+  "optionsSpotifyCredentialsRequired": "Diperlukan - ketuk untuk mengatur",
+  "optionsSpotifyWarning": "Spotify memerlukan kredensial API Anda sendiri. Dapatkan gratis dari developer.spotify.com",
+
+  "extensionsTitle": "Ekstensi",
+  "extensionsInstalled": "Ekstensi Terpasang",
+  "extensionsNone": "Tidak ada ekstensi terpasang",
+  "extensionsNoneSubtitle": "Pasang ekstensi dari tab Toko",
+  "extensionsEnabled": "Aktif",
+  "extensionsDisabled": "Nonaktif",
+  "extensionsVersion": "Versi {version}",
+  "extensionsAuthor": "oleh {author}",
+  "extensionsUninstall": "Copot",
+  "extensionsSetAsSearch": "Jadikan Provider Pencarian",
+
+  "storeTitle": "Toko Ekstensi",
+  "storeSearch": "Cari ekstensi...",
+  "storeInstall": "Pasang",
+  "storeInstalled": "Terpasang",
+  "storeUpdate": "Perbarui",
+
+  "aboutTitle": "Tentang",
+  "aboutContributors": "Kontributor",
+  "aboutMobileDeveloper": "Pengembang versi mobile",
+  "aboutOriginalCreator": "Pencipta SpotiFLAC asli",
+  "aboutLogoArtist": "Seniman berbakat yang membuat logo aplikasi kami yang indah!",
+  "aboutSpecialThanks": "Terima Kasih Khusus",
+  "aboutLinks": "Tautan",
+  "aboutMobileSource": "Kode sumber mobile",
+  "aboutPCSource": "Kode sumber PC",
+  "aboutReportIssue": "Laporkan masalah",
+  "aboutReportIssueSubtitle": "Laporkan masalah yang Anda temui",
+  "aboutFeatureRequest": "Permintaan fitur",
+  "aboutFeatureRequestSubtitle": "Sarankan fitur baru untuk aplikasi",
+  "aboutSupport": "Dukungan",
+  "aboutBuyMeCoffee": "Traktir saya kopi",
+  "aboutBuyMeCoffeeSubtitle": "Dukung pengembangan di Ko-fi",
+  "aboutApp": "Aplikasi",
+  "aboutVersion": "Versi",
+
+  "albumTitle": "Album",
+  "albumTracks": "{count, plural, =1{1 lagu} other{{count} lagu}}",
+  "albumDownloadAll": "Unduh Semua",
+  "albumDownloadRemaining": "Unduh Sisanya",
+
+  "playlistTitle": "Playlist",
+  "artistTitle": "Artis",
+  "artistAlbums": "Album",
+  "artistSingles": "Single & EP",
+
+  "trackMetadataTitle": "Info Lagu",
+  "trackMetadataArtist": "Artis",
+  "trackMetadataAlbum": "Album",
+  "trackMetadataDuration": "Durasi",
+  "trackMetadataQuality": "Kualitas",
+  "trackMetadataPath": "Lokasi File",
+  "trackMetadataDownloadedAt": "Diunduh",
+  "trackMetadataService": "Layanan",
+  "trackMetadataPlay": "Putar",
+  "trackMetadataShare": "Bagikan",
+  "trackMetadataDelete": "Hapus",
+  "trackMetadataRedownload": "Unduh ulang",
+  "trackMetadataOpenFolder": "Buka Folder",
+
+  "setupTitle": "Selamat Datang di SpotiFLAC",
+  "setupSubtitle": "Mari mulai pengaturan",
+  "setupStoragePermission": "Izin Penyimpanan",
+  "setupStoragePermissionSubtitle": "Diperlukan untuk menyimpan file unduhan",
+  "setupStoragePermissionGranted": "Izin diberikan",
+  "setupStoragePermissionDenied": "Izin ditolak",
+  "setupGrantPermission": "Berikan Izin",
+  "setupDownloadLocation": "Lokasi Unduhan",
+  "setupChooseFolder": "Pilih Folder",
+  "setupContinue": "Lanjutkan",
+  "setupSkip": "Lewati untuk sekarang",
+
+  "dialogCancel": "Batal",
+  "dialogOk": "OK",
+  "dialogSave": "Simpan",
+  "dialogDelete": "Hapus",
+  "dialogRetry": "Coba Lagi",
+  "dialogClose": "Tutup",
+  "dialogYes": "Ya",
+  "dialogNo": "Tidak",
+  "dialogClear": "Hapus",
+  "dialogConfirm": "Konfirmasi",
+  "dialogDone": "Selesai",
+
+  "dialogClearHistoryTitle": "Hapus Riwayat",
+  "dialogClearHistoryMessage": "Apakah Anda yakin ingin menghapus semua riwayat unduhan? Ini tidak dapat dibatalkan.",
+  "dialogDeleteSelectedTitle": "Hapus yang Dipilih",
+  "dialogDeleteSelectedMessage": "Hapus {count} {count, plural, =1{lagu} other{lagu}} dari riwayat?\n\nIni juga akan menghapus file dari penyimpanan.",
+  "dialogImportPlaylistTitle": "Impor Playlist",
+  "dialogImportPlaylistMessage": "Ditemukan {count} lagu di CSV. Tambahkan ke antrian unduhan?",
+
+  "snackbarAddedToQueue": "Menambahkan \"{trackName}\" ke antrian",
+  "snackbarAddedTracksToQueue": "Menambahkan {count} lagu ke antrian",
+  "snackbarAlreadyDownloaded": "\"{trackName}\" sudah diunduh",
+  "snackbarHistoryCleared": "Riwayat dihapus",
+  "snackbarCredentialsSaved": "Kredensial disimpan",
+  "snackbarCredentialsCleared": "Kredensial dihapus",
+  "snackbarDeletedTracks": "Menghapus {count} {count, plural, =1{lagu} other{lagu}}",
+  "snackbarCannotOpenFile": "Tidak dapat membuka file: {error}",
+  "snackbarFillAllFields": "Harap isi semua field",
+  "snackbarViewQueue": "Lihat Antrian",
+
+  "errorRateLimited": "Dibatasi",
+  "errorRateLimitedMessage": "Terlalu banyak permintaan. Harap tunggu sebentar sebelum mencari lagi.",
+  "errorFailedToLoad": "Gagal memuat {item}",
+  "errorNoTracksFound": "Tidak ada lagu ditemukan",
+  "errorMissingExtensionSource": "Tidak dapat memuat {item}: sumber ekstensi tidak ada",
+
+  "statusQueued": "Mengantri",
+  "statusDownloading": "Mengunduh",
+  "statusFinalizing": "Menyelesaikan",
+  "statusCompleted": "Selesai",
+  "statusFailed": "Gagal",
+  "statusSkipped": "Dilewati",
+  "statusPaused": "Dijeda",
+
+  "actionPause": "Jeda",
+  "actionResume": "Lanjutkan",
+  "actionCancel": "Batal",
+  "actionStop": "Hentikan",
+  "actionSelect": "Pilih",
+  "actionSelectAll": "Pilih Semua",
+  "actionDeselect": "Batal Pilih",
+  "actionPaste": "Tempel",
+  "actionImportCsv": "Impor CSV",
+  "actionRemoveCredentials": "Hapus Kredensial",
+  "actionSaveCredentials": "Simpan Kredensial",
+
+  "selectionSelected": "{count} dipilih",
+  "selectionAllSelected": "Semua lagu dipilih",
+  "selectionTapToSelect": "Ketuk lagu untuk memilih",
+  "selectionDeleteTracks": "Hapus {count} {count, plural, =1{lagu} other{lagu}}",
+  "selectionSelectToDelete": "Pilih lagu untuk dihapus",
+
+  "progressFetchingMetadata": "Mengambil metadata... {current}/{total}",
+  "progressReadingCsv": "Membaca CSV...",
+
+  "searchSongs": "Lagu",
+  "searchArtists": "Artis",
+  "searchAlbums": "Album",
+  "searchPlaylists": "Playlist",
+
+  "tooltipPlay": "Putar",
+  "tooltipCancel": "Batal",
+  "tooltipStop": "Hentikan",
+  "tooltipRetry": "Coba Lagi",
+  "tooltipRemove": "Hapus",
+  "tooltipClear": "Hapus",
+  "tooltipPaste": "Tempel",
+
+  "filenameFormat": "Format Nama File",
+  "filenameFormatPreview": "Pratinjau: {preview}",
+  "folderOrganization": "Organisasi Folder",
+  "folderOrganizationNone": "Tanpa organisasi",
+  "folderOrganizationByArtist": "Berdasarkan Artis",
+  "folderOrganizationByAlbum": "Berdasarkan Album",
+  "folderOrganizationByArtistAlbum": "Artis/Album",
+
+  "updateAvailable": "Pembaruan Tersedia",
+  "updateNewVersion": "Versi {version} tersedia",
+  "updateDownload": "Unduh",
+  "updateLater": "Nanti",
+  "updateChangelog": "Log Perubahan",
+
+  "providerPriority": "Prioritas Provider",
+  "providerPrioritySubtitle": "Seret untuk mengatur ulang provider unduhan",
+  "metadataProviderPriority": "Prioritas Provider Metadata",
+  "metadataProviderPrioritySubtitle": "Urutan yang digunakan saat mengambil metadata lagu",
+
+  "logTitle": "Log",
+  "logCopy": "Salin Log",
+  "logClear": "Hapus Log",
+  "logShare": "Bagikan Log",
+  "logEmpty": "Belum ada log",
+  "logCopied": "Log disalin ke clipboard",
+
+  "credentialsTitle": "Kredensial Spotify",
+  "credentialsDescription": "Masukkan Client ID dan Secret Anda untuk menggunakan kuota aplikasi Spotify Anda sendiri.",
+  "credentialsClientId": "Client ID",
+  "credentialsClientIdHint": "Tempel Client ID",
+  "credentialsClientSecret": "Client Secret",
+  "credentialsClientSecretHint": "Tempel Client Secret",
+
+  "channelStable": "Stabil",
+  "channelPreview": "Preview",
+
+  "sectionSearchSource": "Sumber Pencarian",
+  "sectionDownload": "Unduhan",
+  "sectionPerformance": "Performa",
+  "sectionApp": "Aplikasi",
+  "sectionData": "Data",
+  "sectionDebug": "Debug",
+  "sectionService": "Layanan",
+  "sectionAudioQuality": "Kualitas Audio",
+  "sectionFileSettings": "Pengaturan File",
+  "sectionColor": "Warna",
+  "sectionTheme": "Tema",
+  "sectionLayout": "Tata Letak",
+  "sectionLanguage": "Bahasa",
+
+  "appearanceLanguage": "Bahasa Aplikasi",
+  "appearanceLanguageSubtitle": "Pilih bahasa yang kamu inginkan",
+  "languageSystem": "Bawaan Sistem",
+  "languageEnglish": "English",
+  "languageIndonesian": "Bahasa Indonesia",
+
+  "settingsAppearanceSubtitle": "Tema, warna, tampilan",
+  "settingsDownloadSubtitle": "Layanan, kualitas, format nama file",
+  "settingsOptionsSubtitle": "Fallback, lirik, cover art, pembaruan",
+  "settingsExtensionsSubtitle": "Kelola provider unduhan",
+  "settingsLogsSubtitle": "Lihat log aplikasi untuk debugging",
+
+  "loadingSharedLink": "Memuat link yang dibagikan...",
+  "pressBackAgainToExit": "Tekan kembali sekali lagi untuk keluar",
+
+  "artistReleases": "{count, plural, =1{1 rilis} other{{count} rilis}}",
+  "artistCompilations": "Kompilasi",
+  "artistPopular": "Populer",
+  "artistMonthlyListeners": "{count} pendengar bulanan",
+
+  "tracksHeader": "Lagu",
+  "downloadAllCount": "Unduh Semua ({count})",
+  "tracksCount": "{count, plural, =1{1 lagu} other{{count} lagu}}",
+
+  "setupStorageAccessRequired": "Akses Penyimpanan Diperlukan",
+  "setupStorageAccessMessage": "SpotiFLAC membutuhkan izin \"Akses semua file\" untuk menyimpan file musik ke folder pilihan Anda.",
+  "setupStorageAccessMessageAndroid11": "Android 11+ memerlukan izin \"Akses semua file\" untuk menyimpan file ke folder unduhan pilihan Anda.",
+  "setupOpenSettings": "Buka Pengaturan",
+  "setupPermissionDeniedMessage": "Izin ditolak. Harap berikan semua izin untuk melanjutkan.",
+  "setupPermissionRequired": "Izin {permissionType} Diperlukan",
+  "setupPermissionRequiredMessage": "Izin {permissionType} diperlukan untuk pengalaman terbaik. Anda dapat mengubahnya nanti di Pengaturan.",
+  "setupSelectDownloadFolder": "Pilih Folder Unduhan",
+  "setupUseDefaultFolder": "Gunakan Folder Default?",
+  "setupNoFolderSelected": "Tidak ada folder dipilih. Apakah Anda ingin menggunakan folder Musik default?",
+  "setupUseDefault": "Gunakan Default",
+  "setupDownloadLocationTitle": "Lokasi Unduhan",
+  "setupDownloadLocationIosMessage": "Di iOS, unduhan disimpan ke folder Documents aplikasi. Anda dapat mengaksesnya melalui aplikasi Files.",
+  "setupAppDocumentsFolder": "Folder Documents Aplikasi",
+  "setupAppDocumentsFolderSubtitle": "Direkomendasikan - dapat diakses via aplikasi Files",
+  "setupChooseFromFiles": "Pilih dari Files",
+  "setupChooseFromFilesSubtitle": "Pilih lokasi iCloud atau lainnya",
+  "setupIosEmptyFolderWarning": "Batasan iOS: Folder kosong tidak dapat dipilih. Pilih folder dengan minimal satu file.",
+  "setupDownloadInFlac": "Unduh lagu Spotify dalam format FLAC",
+  "setupStepStorage": "Penyimpanan",
+  "setupStepNotification": "Notifikasi",
+  "setupStepFolder": "Folder",
+  "setupStepSpotify": "Spotify",
+  "setupStepPermission": "Izin",
+  "setupStorageGranted": "Izin Penyimpanan Diberikan!",
+  "setupStorageRequired": "Izin Penyimpanan Diperlukan",
+  "setupStorageDescription": "SpotiFLAC membutuhkan izin penyimpanan untuk menyimpan file musik yang diunduh.",
+  "setupNotificationGranted": "Izin Notifikasi Diberikan!",
+  "setupNotificationEnable": "Aktifkan Notifikasi",
+  "setupNotificationDescription": "Dapatkan pemberitahuan saat unduhan selesai atau membutuhkan perhatian.",
+  "setupFolderSelected": "Folder Unduhan Dipilih!",
+  "setupFolderChoose": "Pilih Folder Unduhan",
+  "setupFolderDescription": "Pilih folder tempat musik yang diunduh akan disimpan.",
+  "setupChangeFolder": "Ubah Folder",
+  "setupSelectFolder": "Pilih Folder",
+  "setupSpotifyApiOptional": "Spotify API (Opsional)",
+  "setupSpotifyApiDescription": "Tambahkan kredensial Spotify API untuk hasil pencarian lebih baik dan akses ke konten eksklusif Spotify.",
+  "setupUseSpotifyApi": "Gunakan Spotify API",
+  "setupEnterCredentialsBelow": "Masukkan kredensial Anda di bawah",
+  "setupUsingDeezer": "Menggunakan Deezer (tidak perlu akun)",
+  "setupEnterClientId": "Masukkan Spotify Client ID",
+  "setupEnterClientSecret": "Masukkan Spotify Client Secret",
+  "setupGetFreeCredentials": "Dapatkan kredensial API gratis dari Spotify Developer Dashboard.",
+  "setupEnableNotifications": "Aktifkan Notifikasi",
+
+  "dialogImport": "Impor",
+  "dialogDiscard": "Buang",
+  "dialogRemove": "Hapus",
+  "dialogUninstall": "Copot",
+  "dialogDiscardChanges": "Buang Perubahan?",
+  "dialogUnsavedChanges": "Anda memiliki perubahan yang belum disimpan. Apakah Anda ingin membuangnya?",
+  "dialogDownloadFailed": "Unduhan Gagal",
+  "dialogTrackLabel": "Lagu:",
+  "dialogArtistLabel": "Artis:",
+  "dialogErrorLabel": "Error:",
+  "dialogClearAll": "Hapus Semua",
+  "dialogClearAllDownloads": "Apakah Anda yakin ingin menghapus semua unduhan?",
+  "dialogRemoveFromDevice": "Hapus dari perangkat?",
+  "dialogRemoveExtension": "Hapus Ekstensi",
+  "dialogRemoveExtensionMessage": "Apakah Anda yakin ingin menghapus ekstensi ini? Tindakan ini tidak dapat dibatalkan.",
+  "dialogUninstallExtension": "Copot Ekstensi?",
+  "dialogUninstallExtensionMessage": "Apakah Anda yakin ingin menghapus {extensionName}?",
+
+  "snackbarFailedToLoad": "Gagal memuat: {error}",
+  "snackbarUrlCopied": "URL {platform} disalin ke clipboard",
+  "snackbarFileNotFound": "File tidak ditemukan",
+  "snackbarSelectExtFile": "Harap pilih file .spotiflac-ext",
+  "snackbarProviderPrioritySaved": "Prioritas provider disimpan",
+  "snackbarMetadataProviderSaved": "Prioritas provider metadata disimpan",
+  "snackbarExtensionInstalled": "{extensionName} terpasang.",
+  "snackbarExtensionUpdated": "{extensionName} diperbarui.",
+  "snackbarFailedToInstall": "Gagal memasang ekstensi",
+  "snackbarFailedToUpdate": "Gagal memperbarui ekstensi",
+
+  "storeFilterAll": "Semua",
+  "storeFilterMetadata": "Metadata",
+  "storeFilterDownload": "Unduhan",
+  "storeFilterUtility": "Utilitas",
+  "storeFilterLyrics": "Lirik",
+  "storeFilterIntegration": "Integrasi",
+  "storeClearFilters": "Hapus filter",
+  "storeNoResults": "Tidak ada ekstensi ditemukan",
+
+  "extensionProviderPriority": "Prioritas Provider",
+  "extensionInstallButton": "Pasang Ekstensi",
+  "extensionDefaultProvider": "Default (Deezer/Spotify)",
+  "extensionDefaultProviderSubtitle": "Gunakan pencarian bawaan",
+  "extensionAuthor": "Pembuat",
+  "extensionId": "ID",
+  "extensionError": "Error",
+  "extensionCapabilities": "Kemampuan",
+  "extensionMetadataProvider": "Provider Metadata",
+  "extensionDownloadProvider": "Provider Unduhan",
+  "extensionLyricsProvider": "Provider Lirik",
+  "extensionUrlHandler": "Penanganan URL",
+  "extensionQualityOptions": "Opsi Kualitas",
+  "extensionPostProcessingHooks": "Hook Pasca-Pemrosesan",
+  "extensionPermissions": "Izin",
+  "extensionSettings": "Pengaturan",
+  "extensionRemoveButton": "Hapus Ekstensi",
+  "extensionUpdated": "Diperbarui",
+  "extensionMinAppVersion": "Versi App Minimum",
+
+  "qualityFlacLossless": "FLAC Lossless",
+  "qualityFlacLosslessSubtitle": "16-bit / 44.1kHz",
+  "qualityHiResFlac": "Hi-Res FLAC",
+  "qualityHiResFlacSubtitle": "24-bit / hingga 96kHz",
+  "qualityHiResFlacMax": "Hi-Res FLAC Max",
+  "qualityHiResFlacMaxSubtitle": "24-bit / hingga 192kHz",
+  "qualityNote": "Kualitas sebenarnya tergantung ketersediaan lagu dari layanan",
+
+  "downloadAskBeforeDownload": "Tanya Sebelum Unduh",
+  "downloadDirectory": "Direktori Unduhan",
+  "downloadSeparateSinglesFolder": "Folder Singles Terpisah",
+  "downloadAlbumFolderStructure": "Struktur Folder Album",
+  "downloadSaveFormat": "Simpan Format",
+  "downloadSelectService": "Pilih Layanan",
+  "downloadSelectQuality": "Pilih Kualitas",
+  "downloadFrom": "Unduh Dari",
+  "downloadDefaultQualityLabel": "Kualitas Default",
+  "downloadBestAvailable": "Terbaik tersedia",
+
+  "folderNone": "Tidak ada",
+  "folderNoneSubtitle": "Simpan semua file langsung ke folder unduhan",
+  "folderArtist": "Artis",
+  "folderArtistSubtitle": "Nama Artis/namafile",
+  "folderAlbum": "Album",
+  "folderAlbumSubtitle": "Nama Album/namafile",
+  "folderArtistAlbum": "Artis/Album",
+  "folderArtistAlbumSubtitle": "Nama Artis/Nama Album/namafile",
+
+  "serviceTidal": "Tidal",
+  "serviceQobuz": "Qobuz",
+  "serviceAmazon": "Amazon",
+  "serviceDeezer": "Deezer",
+  "serviceSpotify": "Spotify",
+
+  "logSearchHint": "Cari log...",
+  "logFilterLevel": "Level",
+  "logFilterSection": "Filter",
+  "logShareLogs": "Bagikan log",
+  "logClearLogs": "Hapus log",
+  "logClearLogsTitle": "Hapus Log",
+  "logClearLogsMessage": "Apakah Anda yakin ingin menghapus semua log?",
+  "logIspBlocking": "PEMBLOKIRAN ISP TERDETEKSI",
+  "logRateLimited": "DIBATASI",
+  "logNetworkError": "ERROR JARINGAN",
+  "logTrackNotFound": "LAGU TIDAK DITEMUKAN",
+
+  "appearanceAmoledDark": "AMOLED Gelap",
+  "appearanceAmoledDarkSubtitle": "Latar belakang hitam murni",
+  "appearanceChooseAccentColor": "Pilih Warna Aksen",
+  "appearanceChooseTheme": "Mode Tema",
+
+  "updateStartingDownload": "Memulai unduhan...",
+  "updateDownloadFailed": "Unduhan gagal",
+  "updateFailedMessage": "Gagal mengunduh pembaruan",
+  "updateNewVersionReady": "Versi baru sudah siap",
+  "updateCurrent": "Saat ini",
+  "updateNew": "Baru",
+  "updateDownloading": "Mengunduh...",
+  "updateWhatsNew": "Yang Baru",
+  "updateDownloadInstall": "Unduh & Pasang",
+  "updateDontRemind": "Jangan ingatkan",
+
+  "trackCopyFilePath": "Salin lokasi file",
+  "trackRemoveFromDevice": "Hapus dari perangkat",
+  "trackLoadLyrics": "Muat Lirik",
+
+  "dateToday": "Hari ini",
+  "dateYesterday": "Kemarin",
+  "dateDaysAgo": "{count} hari lalu",
+  "dateWeeksAgo": "{count} minggu lalu",
+  "dateMonthsAgo": "{count} bulan lalu",
+
+  "concurrentSequential": "Berurutan",
+  "concurrentParallel2": "2 Paralel",
+  "concurrentParallel3": "3 Paralel",
+
+  "filenameAvailablePlaceholders": "Placeholder yang tersedia:",
+  "filenameHint": "{artist} - {title}",
+
+  "tapToSeeError": "Ketuk untuk melihat detail error",
+
+  "setupProceedToNextStep": "Anda dapat melanjutkan ke langkah berikutnya.",
+  "setupNotificationProgressDescription": "Anda akan menerima notifikasi progres unduhan.",
+  "setupNotificationBackgroundDescription": "Dapatkan notifikasi tentang progres dan penyelesaian unduhan. Ini membantu Anda melacak unduhan saat aplikasi di latar belakang.",
+  "setupSkipForNow": "Lewati untuk sekarang",
+  "setupBack": "Kembali",
+  "setupNext": "Lanjut",
+  "setupGetStarted": "Mulai",
+  "setupSkipAndStart": "Lewati & Mulai",
+  "setupAllowAccessToManageFiles": "Harap aktifkan \"Izinkan akses untuk mengelola semua file\" di layar berikutnya.",
+  "setupGetCredentialsFromSpotify": "Dapatkan kredensial dari developer.spotify.com",
+
+  "trackMetadata": "Metadata",
+  "trackFileInfo": "Info File",
+  "trackLyrics": "Lirik",
+  "trackFileNotFound": "File tidak ditemukan",
+  "trackOpenInDeezer": "Buka di Deezer",
+  "trackOpenInSpotify": "Buka di Spotify",
+  "trackTrackName": "Nama lagu",
+  "trackArtist": "Artis",
+  "trackAlbumArtist": "Artis album",
+  "trackAlbum": "Album",
+  "trackTrackNumber": "Nomor lagu",
+  "trackDiscNumber": "Nomor disc",
+  "trackDuration": "Durasi",
+  "trackAudioQuality": "Kualitas audio",
+  "trackReleaseDate": "Tanggal rilis",
+  "trackDownloaded": "Diunduh",
+  "trackCopyLyrics": "Salin lirik",
+  "trackLyricsNotAvailable": "Lirik tidak tersedia untuk lagu ini",
+  "trackLyricsTimeout": "Permintaan timeout. Coba lagi nanti.",
+  "trackLyricsLoadFailed": "Gagal memuat lirik",
+  "trackCopiedToClipboard": "Disalin ke clipboard",
+  "trackDeleteConfirmTitle": "Hapus dari perangkat?",
+  "trackDeleteConfirmMessage": "Ini akan menghapus file unduhan secara permanen dan menghapusnya dari riwayat Anda.",
+  "trackCannotOpen": "Tidak dapat membuka: {message}",
+
+  "logFilterBySeverity": "Filter log berdasarkan tingkat keparahan",
+  "logNoLogsYet": "Belum ada log",
+  "logNoLogsYetSubtitle": "Log akan muncul di sini saat Anda menggunakan aplikasi",
+  "logIssueSummary": "Ringkasan Masalah",
+  "logIspBlockingDescription": "ISP Anda mungkin memblokir akses ke layanan unduhan",
+  "logIspBlockingSuggestion": "Coba gunakan VPN atau ubah DNS ke 1.1.1.1 atau 8.8.8.8",
+  "logRateLimitedDescription": "Terlalu banyak permintaan ke layanan",
+  "logRateLimitedSuggestion": "Tunggu beberapa menit sebelum mencoba lagi",
+  "logNetworkErrorDescription": "Masalah koneksi terdeteksi",
+  "logNetworkErrorSuggestion": "Periksa koneksi internet Anda",
+  "logTrackNotFoundDescription": "Beberapa lagu tidak dapat ditemukan di layanan unduhan",
+  "logTrackNotFoundSuggestion": "Lagu mungkin tidak tersedia dalam kualitas lossless",
+  "logTotalErrors": "Total error: {count}",
+  "logAffected": "Terpengaruh: {domains}",
+  "logEntriesFiltered": "Entri ({count} difilter)",
+  "logEntries": "Entri ({count})",
+
+  "extensionsProviderPrioritySection": "Prioritas Provider",
+  "extensionsInstalledSection": "Ekstensi Terpasang",
+  "extensionsNoExtensions": "Tidak ada ekstensi terpasang",
+  "extensionsNoExtensionsSubtitle": "Pasang file .spotiflac-ext untuk menambahkan provider baru",
+  "extensionsInstallButton": "Pasang Ekstensi",
+  "extensionsInfoTip": "Ekstensi dapat menambahkan provider metadata dan unduhan baru. Hanya pasang ekstensi dari sumber terpercaya.",
+  "extensionsInstalledSuccess": "Ekstensi berhasil dipasang",
+  "extensionsDownloadPriority": "Prioritas Unduhan",
+  "extensionsDownloadPrioritySubtitle": "Atur urutan layanan unduhan",
+  "extensionsNoDownloadProvider": "Tidak ada ekstensi dengan provider unduhan",
+  "extensionsMetadataPriority": "Prioritas Metadata",
+  "extensionsMetadataPrioritySubtitle": "Atur urutan sumber pencarian & metadata",
+  "extensionsNoMetadataProvider": "Tidak ada ekstensi dengan provider metadata",
+  "extensionsSearchProvider": "Provider Pencarian",
+  "extensionsNoCustomSearch": "Tidak ada ekstensi dengan pencarian kustom",
+  "extensionsSearchProviderDescription": "Pilih layanan yang digunakan untuk mencari lagu",
+  "extensionsCustomSearch": "Pencarian kustom",
+  "extensionsErrorLoading": "Error memuat ekstensi",
+
+  "extensionCustomTrackMatching": "Pencocokan Lagu Kustom",
+  "extensionPostProcessing": "Pasca-Pemrosesan",
+  "extensionHooksAvailable": "{count} hook tersedia",
+  "extensionPatternsCount": "{count} pola",
+  "extensionStrategy": "Strategi: {strategy}",
+
+  "aboutDoubleDouble": "DoubleDouble",
+  "aboutDoubleDoubleDesc": "API luar biasa untuk unduhan Amazon Music. Terima kasih sudah membuatnya gratis!",
+  "aboutDabMusic": "DAB Music",
+  "aboutDabMusicDesc": "API streaming Qobuz terbaik. Unduhan Hi-Res tidak akan mungkin tanpa ini!",
+
+  "queueTitle": "Antrian Unduhan",
+  "queueClearAll": "Hapus Semua",
+  "queueClearAllMessage": "Apakah Anda yakin ingin menghapus semua unduhan?",
+
+  "albumFolderArtistAlbum": "Artis / Album",
+  "albumFolderArtistAlbumSubtitle": "Albums/Nama Artis/Nama Album/",
+  "albumFolderArtistYearAlbum": "Artis / [Tahun] Album",
+  "albumFolderArtistYearAlbumSubtitle": "Albums/Nama Artis/[2005] Nama Album/",
+  "albumFolderAlbumOnly": "Album Saja",
+  "albumFolderAlbumOnlySubtitle": "Albums/Nama Album/",
+  "albumFolderYearAlbum": "[Tahun] Album",
+  "albumFolderYearAlbumSubtitle": "Albums/[2005] Nama Album/",
+
+  "downloadedAlbumDeleteSelected": "Hapus yang Dipilih",
+  "downloadedAlbumDeleteMessage": "Hapus {count} {count, plural, =1{lagu} other{lagu}} dari album ini?\n\nIni juga akan menghapus file dari penyimpanan.",
+
+  "utilityFunctions": "Fungsi Utilitas",
+
+  "aboutMobileDeveloper": "Pengembang versi mobile",
+  "aboutOriginalCreator": "Pembuat SpotiFLAC asli",
+  "aboutLogoArtist": "Seniman berbakat yang membuat logo aplikasi kita yang indah!",
+  "aboutBinimumDesc": "Pembuat QQDL & HiFi API. Tanpa API ini, unduhan Tidal tidak akan ada!",
+  "aboutSachinsenalDesc": "Pembuat proyek HiFi asli. Fondasi dari integrasi Tidal!",
+  "aboutMobileSource": "Kode sumber mobile",
+  "aboutPCSource": "Kode sumber PC",
+  "aboutReportIssue": "Laporkan masalah",
+  "aboutReportIssueSubtitle": "Laporkan masalah yang Anda temui",
+  "aboutFeatureRequest": "Permintaan fitur",
+  "aboutFeatureRequestSubtitle": "Sarankan fitur baru untuk aplikasi",
+  "aboutBuyMeCoffee": "Belikan saya kopi",
+  "aboutBuyMeCoffeeSubtitle": "Dukung pengembangan di Ko-fi",
+  "aboutVersion": "Versi",
+  "aboutAppDescription": "Unduh lagu Spotify dalam kualitas lossless dari Tidal, Qobuz, dan Amazon Music.",
+
+  "providerPriorityTitle": "Prioritas Provider",
+  "providerPriorityDescription": "Seret untuk mengatur ulang urutan provider unduhan. Aplikasi akan mencoba provider dari atas ke bawah saat mengunduh lagu.",
+  "providerPriorityInfo": "Jika lagu tidak tersedia di provider pertama, aplikasi akan otomatis mencoba yang berikutnya.",
+  "providerBuiltIn": "Bawaan",
+  "providerExtension": "Ekstensi",
+
+  "metadataProviderPriorityTitle": "Prioritas Metadata",
+  "metadataProviderPriorityDescription": "Seret untuk mengatur ulang urutan provider metadata. Aplikasi akan mencoba provider dari atas ke bawah saat mencari lagu dan mengambil metadata.",
+  "metadataProviderPriorityInfo": "Deezer tidak memiliki batas rate dan direkomendasikan sebagai utama. Spotify mungkin membatasi rate setelah banyak permintaan.",
+  "metadataNoRateLimits": "Tidak ada batas rate",
+  "metadataMayRateLimit": "Mungkin dibatasi rate",
+
+  "queueEmpty": "Tidak ada unduhan dalam antrian",
+  "queueEmptySubtitle": "Tambahkan lagu dari layar beranda",
+  "queueClearCompleted": "Hapus yang selesai",
+  "queueDownloadFailed": "Unduhan Gagal",
+  "queueTrackLabel": "Lagu:",
+  "queueArtistLabel": "Artis:",
+  "queueErrorLabel": "Error:",
+  "queueUnknownError": "Error tidak diketahui",
+
+  "downloadedAlbumTracksHeader": "Lagu",
+  "downloadedAlbumDownloadedCount": "{count} diunduh",
+  "downloadedAlbumSelectedCount": "{count} dipilih",
+  "downloadedAlbumAllSelected": "Semua lagu dipilih",
+  "downloadedAlbumTapToSelect": "Ketuk lagu untuk memilih",
+  "downloadedAlbumDeleteCount": "Hapus {count} {count, plural, =1{lagu} other{lagu}}",
+  "downloadedAlbumSelectToDelete": "Pilih lagu untuk dihapus",
+
+  "folderOrganizationDescription": "Atur file yang diunduh ke dalam folder",
+  "folderOrganizationNone": "Tidak ada",
+  "folderOrganizationNoneSubtitle": "Semua file di folder unduhan",
+  "folderOrganizationByArtist": "Berdasarkan Artis",
+  "folderOrganizationByArtistSubtitle": "Folder terpisah untuk setiap artis",
+  "folderOrganizationByAlbum": "Berdasarkan Album",
+  "folderOrganizationByAlbumSubtitle": "Folder terpisah untuk setiap album",
+  "folderOrganizationByArtistAlbum": "Berdasarkan Artis & Album",
+  "folderOrganizationByArtistAlbumSubtitle": "Folder bersarang untuk artis dan album",
+
+  "recentTypeArtist": "Artis",
+  "recentTypeAlbum": "Album",
+  "recentTypeSong": "Lagu",
+  "recentTypePlaylist": "Playlist",
+
+  "recentPlaylistInfo": "Playlist: {name}",
+  "errorGeneric": "Error: {message}"
+}

lib/l10n/l10n.dart

@@ -0,0 +1,11 @@
+import 'package:flutter/material.dart';
+import 'package:spotiflac_android/l10n/app_localizations.dart';
+
+export 'package:spotiflac_android/l10n/app_localizations.dart';
+
+/// Extension to easily access AppLocalizations from BuildContext
+extension AppLocalizationsX on BuildContext {
+  /// Get the AppLocalizations instance
+  /// Usage: context.l10n.navHome
+  AppLocalizations get l10n => AppLocalizations.of(this);
+}

lib/l10n/supported_locales.dart

@@ -0,0 +1,48 @@
+// GENERATED FILE - DO NOT EDIT
+// Generated by: dart run tool/check_translations.dart 0
+// Only languages with >= 0% translation completion are included.
+// Translation is measured by comparing VALUES (not just key existence).
+//
+// To regenerate, run: dart run tool/check_translations.dart 0
+
+import 'package:flutter/widgets.dart';
+
+/// Minimum translation completion threshold used to filter languages.
+const int translationThreshold = 0;
+
+/// List of locales that meet the translation threshold.
+/// Only these languages will be available in the app.
+const List<Locale> filteredSupportedLocales = <Locale>[
+  Locale('en'),
+  Locale('ru'),
+  Locale('id'),
+  Locale('ja'),
+  Locale('de'),
+  Locale('es'),
+  Locale('fr'),
+  Locale('hi'),
+  Locale('ko'),
+  Locale('nl'),
+  Locale('pt'),
+  Locale('zh'),
+  Locale('zh', 'CN'),
+  Locale('zh', 'TW'),
+];
+
+/// Set of locale codes for quick lookup.
+const Set<String> filteredLocaleCodes = <String>{
+  'en',
+  'ru',
+  'id',
+  'ja',
+  'de',
+  'es',
+  'fr',
+  'hi',
+  'ko',
+  'nl',
+  'pt',
+  'zh',
+  'zh_CN',
+  'zh_TW',
+};

lib/main.dart

@@ -11,10 +11,8 @@ import 'package:spotiflac_android/services/share_intent_service.dart';
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   
-  // Initialize notification service
   await NotificationService().initialize();
   
-  // Initialize share intent service
   await ShareIntentService().initialize();
   
   runApp(
@@ -48,11 +46,9 @@ class _EagerInitializationState extends ConsumerState<_EagerInitialization> {
       final extensionsDir = '${appDir.path}/extensions';
       final dataDir = '${appDir.path}/extension_data';
       
-      // Create directories if needed
       await Directory(extensionsDir).create(recursive: true);
       await Directory(dataDir).create(recursive: true);
       
-      // Initialize extension system
       await ref.read(extensionProvider.notifier).initialize(extensionsDir, dataDir);
     } catch (e) {
       debugPrint('Failed to initialize extensions: $e');
@@ -61,7 +57,6 @@ class _EagerInitializationState extends ConsumerState<_EagerInitialization> {
 
   @override
   Widget build(BuildContext context) {
-    // Eagerly initialize download history provider to load from storage
     ref.watch(downloadHistoryProvider);
     return widget.child;
   }

lib/models/settings.dart

@@ -28,7 +28,9 @@ class AppSettings {
   final bool useExtensionProviders; // Use extension providers for downloads when available
   final String? searchProvider; // null/empty = default (Deezer/Spotify), otherwise extension ID
   final bool separateSingles; // Separate singles/EPs into their own folder
+  final String albumFolderStructure; // artist_album, album_only, artist_year_album, year_album
   final bool showExtensionStore; // Show Extension Store tab in navigation
+  final String locale; // App language: 'system', 'en', 'id', etc.
 
   const AppSettings({
     this.defaultService = 'tidal',
@@ -55,7 +57,9 @@ class AppSettings {
     this.useExtensionProviders = true, // Default: use extensions when available
     this.searchProvider, // Default: null (use Deezer/Spotify)
     this.separateSingles = false, // Default: disabled
+    this.albumFolderStructure = 'artist_album', // Default: Albums/Artist/Album
     this.showExtensionStore = true, // Default: show store
+    this.locale = 'system', // Default: follow system language
   });
 
   AppSettings copyWith({
@@ -82,8 +86,11 @@ class AppSettings {
     bool? enableLogging,
     bool? useExtensionProviders,
     String? searchProvider,
+    bool clearSearchProvider = false, // Set to true to clear searchProvider to null
     bool? separateSingles,
+    String? albumFolderStructure,
     bool? showExtensionStore,
+    String? locale,
   }) {
     return AppSettings(
       defaultService: defaultService ?? this.defaultService,
@@ -108,9 +115,11 @@ class AppSettings {
       metadataSource: metadataSource ?? this.metadataSource,
       enableLogging: enableLogging ?? this.enableLogging,
       useExtensionProviders: useExtensionProviders ?? this.useExtensionProviders,
-      searchProvider: searchProvider ?? this.searchProvider,
+      searchProvider: clearSearchProvider ? null : (searchProvider ?? this.searchProvider),
       separateSingles: separateSingles ?? this.separateSingles,
+      albumFolderStructure: albumFolderStructure ?? this.albumFolderStructure,
       showExtensionStore: showExtensionStore ?? this.showExtensionStore,
+      locale: locale ?? this.locale,
     );
   }
 

lib/models/settings.g.dart

@@ -32,7 +32,10 @@ AppSettings _$AppSettingsFromJson(Map<String, dynamic> json) => AppSettings(
   useExtensionProviders: json['useExtensionProviders'] as bool? ?? true,
   searchProvider: json['searchProvider'] as String?,
   separateSingles: json['separateSingles'] as bool? ?? false,
+  albumFolderStructure:
+      json['albumFolderStructure'] as String? ?? 'artist_album',
   showExtensionStore: json['showExtensionStore'] as bool? ?? true,
+  locale: json['locale'] as String? ?? 'system',
 );
 
 Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>
@@ -61,5 +64,7 @@ Map<String, dynamic> _$AppSettingsToJson(AppSettings instance) =>
       'useExtensionProviders': instance.useExtensionProviders,
       'searchProvider': instance.searchProvider,
       'separateSingles': instance.separateSingles,
+      'albumFolderStructure': instance.albumFolderStructure,
       'showExtensionStore': instance.showExtensionStore,
+      'locale': instance.locale,
     };

lib/models/track.dart

@@ -20,6 +20,7 @@ class Track {
   final ServiceAvailability? availability;
   final String? source; // Extension ID that provided this track (null for built-in sources)
   final String? albumType; // album, single, ep, compilation (from metadata API)
+  final String? itemType; // track, album, playlist - for extension search results
 
   const Track({
     required this.id,
@@ -37,10 +38,23 @@ class Track {
     this.availability,
     this.source,
     this.albumType,
+    this.itemType,
   });
 
   /// Check if this track is a single (based on album_type metadata)
   bool get isSingle => albumType == 'single' || albumType == 'ep';
+  
+  /// Check if this is an album item (not a track)
+  bool get isAlbumItem => itemType == 'album';
+  
+  /// Check if this is a playlist item (not a track)
+  bool get isPlaylistItem => itemType == 'playlist';
+  
+  /// Check if this is an artist item (not a track)
+  bool get isArtistItem => itemType == 'artist';
+  
+  /// Check if this is a collection (album, playlist, or artist)
+  bool get isCollection => isAlbumItem || isPlaylistItem || isArtistItem;
 
   factory Track.fromJson(Map<String, dynamic> json) => _$TrackFromJson(json);
   Map<String, dynamic> toJson() => _$TrackToJson(this);

lib/models/track.g.dart

@@ -26,6 +26,7 @@ Track _$TrackFromJson(Map<String, dynamic> json) => Track(
         ),
   source: json['source'] as String?,
   albumType: json['albumType'] as String?,
+  itemType: json['itemType'] as String?,
 );
 
 Map<String, dynamic> _$TrackToJson(Track instance) => <String, dynamic>{
@@ -44,6 +45,7 @@ Map<String, dynamic> _$TrackToJson(Track instance) => <String, dynamic>{
   'availability': instance.availability,
   'source': instance.source,
   'albumType': instance.albumType,
+  'itemType': instance.itemType,
 };
 
 ServiceAvailability _$ServiceAvailabilityFromJson(Map<String, dynamic> json) =>

lib/providers/extension_provider.dart

@@ -175,12 +175,10 @@ class SearchBehavior {
   /// Get thumbnail size based on configuration
   /// Returns (width, height) tuple
   (double, double) getThumbnailSize({double defaultSize = 56}) {
-    // If custom dimensions specified, use them
     if (thumbnailWidth != null && thumbnailHeight != null) {
       return (thumbnailWidth!.toDouble(), thumbnailHeight!.toDouble());
     }
     
-    // Otherwise use ratio presets
     switch (thumbnailRatio) {
       case 'wide': // 16:9 - YouTube style
         return (defaultSize * 16 / 9, defaultSize);
@@ -558,10 +556,8 @@ class ExtensionNotifier extends Notifier<ExtensionState> {
       await PlatformBridge.setExtensionEnabled(extensionId, enabled);
       _log.d('Set extension $extensionId enabled: $enabled');
       
-      // Get extension info before updating state
       final ext = state.extensions.where((e) => e.id == extensionId).firstOrNull;
       
-      // Update local state
       final extensions = state.extensions.map((e) {
         if (e.id == extensionId) {
           return e.copyWith(enabled: enabled);
@@ -571,18 +567,15 @@ class ExtensionNotifier extends Notifier<ExtensionState> {
       
       state = state.copyWith(extensions: extensions);
       
-      // If disabling an extension, reset related settings
       if (!enabled && ext != null) {
         final settings = ref.read(settingsProvider);
         
-        // If this extension was the search provider, clear it and reset to Deezer
         if (settings.searchProvider == extensionId) {
           ref.read(settingsProvider.notifier).setSearchProvider(null);
           ref.read(settingsProvider.notifier).setMetadataSource('deezer');
           _log.d('Cleared search provider and reset to Deezer because extension $extensionId was disabled');
         }
         
-        // If this extension was the default download service, reset to Tidal
         if (ext.hasDownloadProvider && settings.defaultService == extensionId) {
           ref.read(settingsProvider.notifier).setDefaultService('tidal');
           _log.d('Reset default service to Tidal because extension $extensionId was disabled');

lib/providers/recent_access_provider.dart

@@ -0,0 +1,242 @@
+import 'dart:convert';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+const _recentAccessKey = 'recent_access_history';
+const _maxRecentItems = 20;
+
+/// Types of items that can be accessed
+enum RecentAccessType {
+  artist,
+  album,
+  track,
+  playlist,
+}
+
+/// Represents a recently accessed item
+class RecentAccessItem {
+  final String id;
+  final String name;
+  final String? subtitle; // Artist name for tracks/albums, null for artists
+  final String? imageUrl;
+  final RecentAccessType type;
+  final DateTime accessedAt;
+  final String? providerId; // Extension ID or 'deezer' for built-in
+
+  const RecentAccessItem({
+    required this.id,
+    required this.name,
+    this.subtitle,
+    this.imageUrl,
+    required this.type,
+    required this.accessedAt,
+    this.providerId,
+  });
+
+  Map<String, dynamic> toJson() => {
+    'id': id,
+    'name': name,
+    'subtitle': subtitle,
+    'imageUrl': imageUrl,
+    'type': type.name,
+    'accessedAt': accessedAt.toIso8601String(),
+    'providerId': providerId,
+  };
+
+  factory RecentAccessItem.fromJson(Map<String, dynamic> json) {
+    return RecentAccessItem(
+      id: json['id'] as String,
+      name: json['name'] as String,
+      subtitle: json['subtitle'] as String?,
+      imageUrl: json['imageUrl'] as String?,
+      type: RecentAccessType.values.firstWhere(
+        (e) => e.name == json['type'],
+        orElse: () => RecentAccessType.track,
+      ),
+      accessedAt: DateTime.parse(json['accessedAt'] as String),
+      providerId: json['providerId'] as String?,
+    );
+  }
+
+  /// Create a unique key for deduplication
+  String get uniqueKey => '${type.name}:${providerId ?? 'default'}:$id';
+
+  @override
+  bool operator ==(Object other) =>
+      identical(this, other) ||
+      other is RecentAccessItem &&
+          runtimeType == other.runtimeType &&
+          uniqueKey == other.uniqueKey;
+
+  @override
+  int get hashCode => uniqueKey.hashCode;
+}
+
+/// State for recent access history
+class RecentAccessState {
+  final List<RecentAccessItem> items;
+  final bool isLoaded;
+
+  const RecentAccessState({
+    this.items = const [],
+    this.isLoaded = false,
+  });
+
+  RecentAccessState copyWith({
+    List<RecentAccessItem>? items,
+    bool? isLoaded,
+  }) {
+    return RecentAccessState(
+      items: items ?? this.items,
+      isLoaded: isLoaded ?? this.isLoaded,
+    );
+  }
+}
+
+/// Provider for managing recent access history
+class RecentAccessNotifier extends Notifier<RecentAccessState> {
+  @override
+  RecentAccessState build() {
+    _loadHistory();
+    return const RecentAccessState();
+  }
+
+  Future<void> _loadHistory() async {
+    final prefs = await SharedPreferences.getInstance();
+    final json = prefs.getString(_recentAccessKey);
+    if (json != null) {
+      try {
+        final List<dynamic> decoded = jsonDecode(json);
+        final items = decoded
+            .map((e) => RecentAccessItem.fromJson(e as Map<String, dynamic>))
+            .toList();
+        state = state.copyWith(items: items, isLoaded: true);
+      } catch (e) {
+        state = state.copyWith(isLoaded: true);
+      }
+    } else {
+      state = state.copyWith(isLoaded: true);
+    }
+  }
+
+  Future<void> _saveHistory() async {
+    final prefs = await SharedPreferences.getInstance();
+    final json = jsonEncode(state.items.map((e) => e.toJson()).toList());
+    await prefs.setString(_recentAccessKey, json);
+  }
+
+  /// Record an access to an artist
+  void recordArtistAccess({
+    required String id,
+    required String name,
+    String? imageUrl,
+    String? providerId,
+  }) {
+    _recordAccess(RecentAccessItem(
+      id: id,
+      name: name,
+      imageUrl: imageUrl,
+      type: RecentAccessType.artist,
+      accessedAt: DateTime.now(),
+      providerId: providerId,
+    ));
+  }
+
+  /// Record an access to an album
+  void recordAlbumAccess({
+    required String id,
+    required String name,
+    String? artistName,
+    String? imageUrl,
+    String? providerId,
+  }) {
+    _recordAccess(RecentAccessItem(
+      id: id,
+      name: name,
+      subtitle: artistName,
+      imageUrl: imageUrl,
+      type: RecentAccessType.album,
+      accessedAt: DateTime.now(),
+      providerId: providerId,
+    ));
+  }
+
+  /// Record an access to a track
+  void recordTrackAccess({
+    required String id,
+    required String name,
+    String? artistName,
+    String? imageUrl,
+    String? providerId,
+  }) {
+    _recordAccess(RecentAccessItem(
+      id: id,
+      name: name,
+      subtitle: artistName,
+      imageUrl: imageUrl,
+      type: RecentAccessType.track,
+      accessedAt: DateTime.now(),
+      providerId: providerId,
+    ));
+  }
+
+  /// Record an access to a playlist
+  void recordPlaylistAccess({
+    required String id,
+    required String name,
+    String? ownerName,
+    String? imageUrl,
+    String? providerId,
+  }) {
+    _recordAccess(RecentAccessItem(
+      id: id,
+      name: name,
+      subtitle: ownerName,
+      imageUrl: imageUrl,
+      type: RecentAccessType.playlist,
+      accessedAt: DateTime.now(),
+      providerId: providerId,
+    ));
+  }
+
+  void _recordAccess(RecentAccessItem item) {
+    // ignore: avoid_print
+    print('[RecentAccess] Recording: ${item.type.name} - ${item.name} (${item.id})');
+    
+    final updatedItems = state.items
+        .where((e) => e.uniqueKey != item.uniqueKey)
+        .toList();
+    
+    updatedItems.insert(0, item);
+    
+    if (updatedItems.length > _maxRecentItems) {
+      updatedItems.removeRange(_maxRecentItems, updatedItems.length);
+    }
+    
+    state = state.copyWith(items: updatedItems);
+    _saveHistory();
+    
+    // ignore: avoid_print
+    print('[RecentAccess] Total items now: ${updatedItems.length}');
+  }
+
+  /// Remove a specific item from history
+  void removeItem(RecentAccessItem item) {
+    final updatedItems = state.items
+        .where((e) => e.uniqueKey != item.uniqueKey)
+        .toList();
+    state = state.copyWith(items: updatedItems);
+    _saveHistory();
+  }
+
+  /// Clear all history
+  void clearHistory() {
+    state = state.copyWith(items: []);
+    _saveHistory();
+  }
+}
+
+/// Provider instance
+final recentAccessProvider = NotifierProvider<RecentAccessNotifier, RecentAccessState>(
+  RecentAccessNotifier.new,
+);

lib/providers/settings_provider.dart

@@ -22,13 +22,10 @@ class SettingsNotifier extends Notifier<AppSettings> {
     if (json != null) {
       state = AppSettings.fromJson(jsonDecode(json));
       
-      // Run migrations if needed
       await _runMigrations(prefs);
       
-      // Apply Spotify credentials to Go backend on load
       _applySpotifyCredentials();
       
-      // Sync logging state
       LogBuffer.loggingEnabled = state.enableLogging;
     }
   }
@@ -38,16 +35,12 @@ class SettingsNotifier extends Notifier<AppSettings> {
     final lastMigration = prefs.getInt(_migrationVersionKey) ?? 0;
     
     if (lastMigration < 1) {
-      // Migration 1: Set metadataSource to 'deezer' for existing users
-      // Only apply if user hasn't enabled custom Spotify credentials
-      // (users with custom credentials likely prefer Spotify)
       if (!state.useCustomSpotifyCredentials) {
         state = state.copyWith(metadataSource: 'deezer');
         await _saveSettings();
       }
     }
     
-    // Save current migration version
     if (lastMigration < _currentMigrationVersion) {
       await prefs.setInt(_migrationVersionKey, _currentMigrationVersion);
     }
@@ -60,7 +53,6 @@ class SettingsNotifier extends Notifier<AppSettings> {
 
   /// Apply current Spotify credentials to Go backend
   Future<void> _applySpotifyCredentials() async {
-    // Only apply if both fields are set
     if (state.spotifyClientId.isNotEmpty && 
         state.spotifyClientSecret.isNotEmpty) {
       await PlatformBridge.setSpotifyCredentials(
@@ -68,8 +60,6 @@ class SettingsNotifier extends Notifier<AppSettings> {
         state.spotifyClientSecret,
       );
     }
-    // Note: If credentials are empty, Spotify API will return error
-    // User should use Deezer as metadata source instead
   }
 
   void setDefaultService(String service) {
@@ -113,7 +103,6 @@ class SettingsNotifier extends Notifier<AppSettings> {
   }
 
   void setConcurrentDownloads(int count) {
-    // Clamp between 1 and 3
     final clamped = count.clamp(1, 3);
     state = state.copyWith(concurrentDownloads: clamped);
     _saveSettings();
@@ -196,14 +185,17 @@ class SettingsNotifier extends Notifier<AppSettings> {
   }
 
   void setSearchProvider(String? provider) {
-    state = state.copyWith(searchProvider: provider);
+    if (provider == null || provider.isEmpty) {
+      state = state.copyWith(clearSearchProvider: true);
+    } else {
+      state = state.copyWith(searchProvider: provider);
+    }
     _saveSettings();
   }
 
   void setEnableLogging(bool enabled) {
     state = state.copyWith(enableLogging: enabled);
     _saveSettings();
-    // Sync logging state to LogBuffer
     LogBuffer.loggingEnabled = enabled;
   }
 
@@ -217,10 +209,20 @@ class SettingsNotifier extends Notifier<AppSettings> {
     _saveSettings();
   }
 
+  void setAlbumFolderStructure(String structure) {
+    state = state.copyWith(albumFolderStructure: structure);
+    _saveSettings();
+  }
+
   void setShowExtensionStore(bool enabled) {
     state = state.copyWith(showExtensionStore: enabled);
     _saveSettings();
   }
+
+  void setLocale(String locale) {
+    state = state.copyWith(locale: locale);
+    _saveSettings();
+  }
 }
 
 final settingsProvider = NotifierProvider<SettingsNotifier, AppSettings>(

lib/providers/store_provider.dart

@@ -1,10 +1,29 @@
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/constants/app_info.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/utils/logger.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 
 final _log = AppLogger('StoreProvider');
 
+/// Compare two semantic version strings
+/// Returns: -1 if v1 < v2, 0 if equal, 1 if v1 > v2
+int compareVersions(String v1, String v2) {
+  final parts1 = v1.replaceAll(RegExp(r'^v'), '').split('.');
+  final parts2 = v2.replaceAll(RegExp(r'^v'), '').split('.');
+  
+  final maxLen = parts1.length > parts2.length ? parts1.length : parts2.length;
+  
+  for (var i = 0; i < maxLen; i++) {
+    final n1 = i < parts1.length ? (int.tryParse(parts1[i]) ?? 0) : 0;
+    final n2 = i < parts2.length ? (int.tryParse(parts2[i]) ?? 0) : 0;
+    
+    if (n1 < n2) return -1;
+    if (n1 > n2) return 1;
+  }
+  return 0;
+}
+
 /// Extension categories
 class StoreCategory {
   static const String metadata = 'metadata';
@@ -91,6 +110,12 @@ class StoreExtension {
       hasUpdate: json['has_update'] as bool? ?? false,
     );
   }
+
+  /// Check if this extension requires a higher app version than current
+  bool get requiresNewerApp {
+    if (minAppVersion == null || minAppVersion!.isEmpty) return false;
+    return compareVersions(minAppVersion!, AppInfo.version) > 0;
+  }
 }
 
 /// State for extension store
@@ -161,6 +186,11 @@ class StoreState {
 
     return result;
   }
+
+  /// Count of extensions with updates available
+  int get updatesAvailableCount {
+    return extensions.where((e) => e.hasUpdate).length;
+  }
 }
 
 /// Provider for managing extension store

lib/providers/track_provider.dart

@@ -17,9 +17,13 @@ class TrackState {
   final String? artistId;
   final String? artistName;
   final String? coverUrl;
+  final String? headerImageUrl; // Artist header image for background
+  final int? monthlyListeners; // Artist monthly listeners
   final List<ArtistAlbum>? artistAlbums; // For artist page
+  final List<Track>? artistTopTracks; // Artist's popular tracks
   final List<SearchArtist>? searchArtists; // For search results
   final bool hasSearchText; // For back button handling
+  final bool isShowingRecentAccess; // For recent access mode
   final String? searchExtensionId; // Extension ID used for current search results
 
   const TrackState({
@@ -32,9 +36,13 @@ class TrackState {
     this.artistId,
     this.artistName,
     this.coverUrl,
+    this.headerImageUrl,
+    this.monthlyListeners,
     this.artistAlbums,
+    this.artistTopTracks,
     this.searchArtists,
     this.hasSearchText = false,
+    this.isShowingRecentAccess = false,
     this.searchExtensionId,
   });
 
@@ -50,9 +58,13 @@ class TrackState {
     String? artistId,
     String? artistName,
     String? coverUrl,
+    String? headerImageUrl,
+    int? monthlyListeners,
     List<ArtistAlbum>? artistAlbums,
+    List<Track>? artistTopTracks,
     List<SearchArtist>? searchArtists,
     bool? hasSearchText,
+    bool? isShowingRecentAccess,
     String? searchExtensionId,
   }) {
     return TrackState(
@@ -65,9 +77,13 @@ class TrackState {
       artistId: artistId ?? this.artistId,
       artistName: artistName ?? this.artistName,
       coverUrl: coverUrl ?? this.coverUrl,
+      headerImageUrl: headerImageUrl ?? this.headerImageUrl,
+      monthlyListeners: monthlyListeners ?? this.monthlyListeners,
       artistAlbums: artistAlbums ?? this.artistAlbums,
+      artistTopTracks: artistTopTracks ?? this.artistTopTracks,
       searchArtists: searchArtists ?? this.searchArtists,
       hasSearchText: hasSearchText ?? this.hasSearchText,
+      isShowingRecentAccess: isShowingRecentAccess ?? this.isShowingRecentAccess,
       searchExtensionId: searchExtensionId,
     );
   }
@@ -82,6 +98,7 @@ class ArtistAlbum {
   final String? coverUrl;
   final String albumType; // album, single, compilation
   final String artists;
+  final String? providerId; // Extension ID if from extension
 
   const ArtistAlbum({
     required this.id,
@@ -91,6 +108,7 @@ class ArtistAlbum {
     this.coverUrl,
     required this.albumType,
     required this.artists,
+    this.providerId,
   });
 }
 
@@ -124,14 +142,11 @@ class TrackNotifier extends Notifier<TrackState> {
   bool _isRequestValid(int requestId) => requestId == _currentRequestId;
 
   Future<void> fetchFromUrl(String url, {bool useDeezerFallback = true}) async {
-    // Increment request ID to cancel any pending requests
     final requestId = ++_currentRequestId;
 
-    // Preserve hasSearchText during fetch
     state = TrackState(isLoading: true, hasSearchText: state.hasSearchText);
 
     try {
-      // First, check if any extension can handle this URL
       final extensionHandler = await PlatformBridge.findURLHandler(url);
       if (extensionHandler != null) {
         _log.i('Found extension URL handler: $extensionHandler for URL: $url');
@@ -169,13 +184,20 @@ class TrackNotifier extends Notifier<TrackState> {
             final artistData = result['artist'] as Map<String, dynamic>;
             final albumsList = artistData['albums'] as List<dynamic>? ?? [];
             final albums = albumsList.map((a) => _parseArtistAlbum(a as Map<String, dynamic>)).toList();
+            
+            final topTracksList = artistData['top_tracks'] as List<dynamic>? ?? [];
+            final topTracks = topTracksList.map((t) => _parseSearchTrack(t as Map<String, dynamic>, source: extensionId)).toList();
+            
             state = TrackState(
               tracks: [],
               isLoading: false,
               artistId: artistData['id'] as String?,
               artistName: artistData['name'] as String?,
               coverUrl: artistData['image_url'] as String? ?? artistData['images'] as String?,
+              headerImageUrl: artistData['header_image'] as String?,
+              monthlyListeners: artistData['listeners'] as int?,
               artistAlbums: albums,
+              artistTopTracks: topTracks.isNotEmpty ? topTracks : null,
               searchExtensionId: extensionId,
             );
             return;
@@ -183,13 +205,11 @@ class TrackNotifier extends Notifier<TrackState> {
         }
       }
       
-      // No extension handler found, try Spotify URL parsing
       final parsed = await PlatformBridge.parseSpotifyUrl(url);
       if (!_isRequestValid(requestId)) return; // Request cancelled
       
       final type = parsed['type'] as String;
 
-      // Use the new fallback-enabled method
       Map<String, dynamic> metadata;
       
       try {
@@ -199,7 +219,6 @@ class TrackNotifier extends Notifier<TrackState> {
         // ignore: avoid_print
         print('[FetchURL] Metadata fetch success');
       } catch (e) {
-        // If fallback also fails, show error
         // ignore: avoid_print
         print('[FetchURL] Metadata fetch failed: $e');
         rethrow;
@@ -226,7 +245,6 @@ class TrackNotifier extends Notifier<TrackState> {
           albumName: albumInfo['name'] as String?,
           coverUrl: albumInfo['images'] as String?,
         );
-        // Pre-warm cache for album tracks in background
         _preWarmCacheForTracks(tracks);
       } else if (type == 'playlist') {
         final playlistInfo = metadata['playlist_info'] as Map<String, dynamic>;
@@ -239,7 +257,6 @@ class TrackNotifier extends Notifier<TrackState> {
           playlistName: owner?['name'] as String?,
           coverUrl: owner?['images'] as String?,
         );
-        // Pre-warm cache for playlist tracks in background
         _preWarmCacheForTracks(tracks);
       } else if (type == 'artist') {
         final artistInfo = metadata['artist_info'] as Map<String, dynamic>;
@@ -255,44 +272,44 @@ class TrackNotifier extends Notifier<TrackState> {
         );
       }
     } catch (e) {
-      if (!_isRequestValid(requestId)) return; // Request cancelled
-      // Preserve hasSearchText on error so user stays on search screen
+      if (!_isRequestValid(requestId)) return;
       state = TrackState(isLoading: false, error: e.toString(), hasSearchText: state.hasSearchText);
     }
   }
 
   Future<void> search(String query, {String? metadataSource}) async {
-    // Increment request ID to cancel any pending requests
     final requestId = ++_currentRequestId;
 
-    // Preserve hasSearchText during search
     state = TrackState(isLoading: true, hasSearchText: state.hasSearchText);
 
     try {
-      // Check if extension providers should be used for search
       final settings = ref.read(settingsProvider);
       final extensionState = ref.read(extensionProvider);
       final hasActiveMetadataExtensions = extensionState.extensions.any(
         (e) => e.enabled && e.hasMetadataProvider,
       );
-      final useExtensions = settings.useExtensionProviders && hasActiveMetadataExtensions;
+      final searchProvider = settings.searchProvider;
+      final useExtensions =
+          settings.useExtensionProviders &&
+          hasActiveMetadataExtensions &&
+          searchProvider != null &&
+          searchProvider.isNotEmpty;
 
-      // Use Deezer or Spotify based on settings
       final source = metadataSource ?? 'deezer';
       
-      _log.i('Search started: source=$source, query="$query", useExtensions=$useExtensions');
+      _log.i(
+        'Search started: source=$source, query="$query", useExtensions=$useExtensions',
+      );
       
       Map<String, dynamic> results;
       List<Track> extensionTracks = [];
       
-      // Try extension providers first if enabled
       if (useExtensions) {
         try {
           _log.d('Calling extension search API...');
           final extResults = await PlatformBridge.searchTracksWithExtensions(query, limit: 20);
           _log.i('Extensions returned ${extResults.length} tracks');
           
-          // Parse extension results
           for (final t in extResults) {
             try {
               extensionTracks.add(_parseSearchTrack(t));
@@ -305,7 +322,6 @@ class TrackNotifier extends Notifier<TrackState> {
         }
       }
       
-      // Also search with built-in providers
       if (source == 'deezer') {
         _log.d('Calling Deezer search API...');
         results = await PlatformBridge.searchDeezerAll(query, trackLimit: 20, artistLimit: 5);
@@ -326,13 +342,10 @@ class TrackNotifier extends Notifier<TrackState> {
       
       _log.d('Raw results: ${trackList.length} tracks, ${artistList.length} artists');
       
-      // Parse tracks with error handling per item
       final tracks = <Track>[];
       
-      // Add extension tracks first (they have priority)
       tracks.addAll(extensionTracks);
       
-      // Add built-in provider tracks, avoiding duplicates by ISRC
       final existingIsrcs = extensionTracks
           .where((t) => t.isrc != null && t.isrc!.isNotEmpty)
           .map((t) => t.isrc!)
@@ -343,7 +356,6 @@ class TrackNotifier extends Notifier<TrackState> {
         try {
           if (t is Map<String, dynamic>) {
             final track = _parseSearchTrack(t);
-            // Skip if we already have this track from extensions
             if (track.isrc != null && existingIsrcs.contains(track.isrc)) {
               continue;
             }
@@ -356,7 +368,6 @@ class TrackNotifier extends Notifier<TrackState> {
         }
       }
       
-      // Parse artists with error handling per item
       final artists = <SearchArtist>[];
       for (int i = 0; i < artistList.length; i++) {
         final a = artistList[i];
@@ -388,10 +399,8 @@ class TrackNotifier extends Notifier<TrackState> {
 
   /// Perform custom search using a specific extension
   Future<void> customSearch(String extensionId, String query, {Map<String, dynamic>? options}) async {
-    // Increment request ID to cancel any pending requests
     final requestId = ++_currentRequestId;
 
-    // Preserve hasSearchText during search
     state = TrackState(isLoading: true, hasSearchText: state.hasSearchText);
 
     try {
@@ -406,7 +415,6 @@ class TrackNotifier extends Notifier<TrackState> {
       
       _log.i('Custom search returned ${results.length} tracks');
       
-      // Parse tracks with error handling per item, setting source to extension ID
       final tracks = <Track>[];
       for (int i = 0; i < results.length; i++) {
         final t = results[i];
@@ -453,6 +461,8 @@ class TrackNotifier extends Notifier<TrackState> {
         trackNumber: track.trackNumber,
         discNumber: track.discNumber,
         releaseDate: track.releaseDate,
+        albumType: track.albumType,
+        source: track.source,
         availability: ServiceAvailability(
           tidal: availability['tidal'] as bool? ?? false,
           qobuz: availability['qobuz'] as bool? ?? false,
@@ -467,7 +477,6 @@ class TrackNotifier extends Notifier<TrackState> {
       tracks[index] = updatedTrack;
       state = state.copyWith(tracks: tracks);
     } catch (e) {
-      // Silently fail availability check
     }
   }
 
@@ -479,6 +488,28 @@ class TrackNotifier extends Notifier<TrackState> {
   void setSearchText(bool hasText) {
     state = state.copyWith(hasSearchText: hasText);
   }
+  
+  /// Set recent access mode state
+  void setShowingRecentAccess(bool showing) {
+    state = state.copyWith(isShowingRecentAccess: showing);
+  }
+  
+  /// Set tracks from a collection (album/playlist) opened from search results
+  void setTracksFromCollection({
+    required List<Track> tracks,
+    String? albumName,
+    String? playlistName,
+    String? coverUrl,
+  }) {
+    state = TrackState(
+      tracks: tracks,
+      isLoading: false,
+      albumName: albumName,
+      playlistName: playlistName,
+      coverUrl: coverUrl,
+      hasSearchText: state.hasSearchText,
+    );
+  }
 
   Track _parseTrack(Map<String, dynamic> data) {
     return Track(
@@ -497,7 +528,6 @@ class TrackNotifier extends Notifier<TrackState> {
   }
 
   Track _parseSearchTrack(Map<String, dynamic> data, {String? source}) {
-    // Handle duration_ms which might be int or double
     int durationMs = 0;
     final durationValue = data['duration_ms'];
     if (durationValue is int) {
@@ -506,13 +536,15 @@ class TrackNotifier extends Notifier<TrackState> {
       durationMs = durationValue.toInt();
     }
     
+    final itemType = data['item_type']?.toString();
+    
     return Track(
       id: (data['spotify_id'] ?? data['id'] ?? '').toString(),
       name: (data['name'] ?? '').toString(),
       artistName: (data['artists'] ?? data['artist'] ?? '').toString(),
       albumName: (data['album_name'] ?? data['album'] ?? '').toString(),
       albumArtist: data['album_artist']?.toString(),
-      coverUrl: data['images']?.toString(),
+      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
       isrc: data['isrc']?.toString(),
       duration: (durationMs / 1000).round(),
       trackNumber: data['track_number'] as int?,
@@ -520,6 +552,7 @@ class TrackNotifier extends Notifier<TrackState> {
       releaseDate: data['release_date']?.toString(),
       source: source ?? data['source']?.toString() ?? data['provider_id']?.toString(),
       albumType: data['album_type']?.toString(),
+      itemType: itemType,
     );
   }
 
@@ -529,9 +562,10 @@ class TrackNotifier extends Notifier<TrackState> {
       name: data['name'] as String? ?? '',
       releaseDate: data['release_date'] as String? ?? '',
       totalTracks: data['total_tracks'] as int? ?? 0,
-      coverUrl: data['images'] as String?,
+      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
       albumType: data['album_type'] as String? ?? 'album',
       artists: data['artists'] as String? ?? '',
+      providerId: data['provider_id']?.toString(),
     );
   }
 
@@ -548,23 +582,18 @@ class TrackNotifier extends Notifier<TrackState> {
   /// Pre-warm track ID cache for faster downloads
   /// Runs in background, doesn't block UI
   void _preWarmCacheForTracks(List<Track> tracks) {
-    // Only pre-warm if we have tracks with ISRC
     final tracksWithIsrc = tracks.where((t) => t.isrc != null && t.isrc!.isNotEmpty).toList();
     if (tracksWithIsrc.isEmpty) return;
 
-    // Build request list for Go backend
     final cacheRequests = tracksWithIsrc.map((t) => {
       'isrc': t.isrc!,
       'track_name': t.name,
       'artist_name': t.artistName,
       'spotify_id': t.id, // Include Spotify ID for Amazon lookup
-      'service': 'tidal', // Default to tidal for pre-warming
+      'service': 'tidal',
     }).toList();
 
-    // Fire and forget - runs in background
-    PlatformBridge.preWarmTrackCache(cacheRequests).catchError((_) {
-      // Silently ignore errors - this is just an optimization
-    });
+    PlatformBridge.preWarmTrackCache(cacheRequests).catchError((_) {});
   }
 }
 

lib/screens/album_screen.dart

@@ -2,10 +2,12 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:cached_network_image/cached_network_image.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/models/track.dart';
 import 'package:spotiflac_android/models/download_item.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
+import 'package:spotiflac_android/providers/recent_access_provider.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/widgets/download_service_picker.dart';
 
@@ -62,7 +64,18 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
   @override
   void initState() {
     super.initState();
-    // Priority: widget.tracks > cache > fetch
+    
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      final providerId = widget.albumId.startsWith('deezer:') ? 'deezer' : 'spotify';
+      ref.read(recentAccessProvider.notifier).recordAlbumAccess(
+        id: widget.albumId,
+        name: widget.albumName,
+        artistName: widget.tracks?.firstOrNull?.artistName,
+        imageUrl: widget.coverUrl,
+        providerId: providerId,
+      );
+    });
+    
     _tracks = widget.tracks ?? _AlbumCache.get(widget.albumId);
     if (_tracks == null) {
       _fetchTracks();
@@ -74,14 +87,12 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
     try {
       Map<String, dynamic> metadata;
       
-      // Check if this is a Deezer album ID (format: "deezer:123456")
       if (widget.albumId.startsWith('deezer:')) {
         final deezerAlbumId = widget.albumId.replaceFirst('deezer:', '');
         // ignore: avoid_print
         print('[AlbumScreen] Fetching from Deezer: $deezerAlbumId');
         metadata = await PlatformBridge.getDeezerMetadata('album', deezerAlbumId);
       } else {
-        // Spotify album - use fallback method
         // ignore: avoid_print
         print('[AlbumScreen] Fetching from Spotify with fallback: ${widget.albumId}');
         final url = 'https://open.spotify.com/album/${widget.albumId}';
@@ -91,7 +102,6 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
       final trackList = metadata['track_list'] as List<dynamic>;
       final tracks = trackList.map((t) => _parseTrack(t as Map<String, dynamic>)).toList();
       
-      // Store in cache
       _AlbumCache.set(widget.albumId, tracks);
       
       if (mounted) {
@@ -260,7 +270,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
                       children: [
                         Icon(Icons.music_note, size: 14, color: colorScheme.onSecondaryContainer),
                         const SizedBox(width: 4),
-                        Text('${tracks.length} tracks', style: TextStyle(color: colorScheme.onSecondaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
+                        Text(context.l10n.tracksCount(tracks.length), style: TextStyle(color: colorScheme.onSecondaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
                       ],
                     ),
                   ),
@@ -269,7 +279,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
                   FilledButton.icon(
                     onPressed: () => _downloadAll(context),
                     icon: const Icon(Icons.download),
-                    label: Text('Download All (${tracks.length})'),
+                    label: Text(context.l10n.downloadAllCount(tracks.length)),
                     style: FilledButton.styleFrom(minimumSize: const Size.fromHeight(52), shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16))),
                   ),
                 ],
@@ -289,7 +299,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
           children: [
             Icon(Icons.queue_music, size: 20, color: colorScheme.primary),
             const SizedBox(width: 8),
-            Text('Tracks', style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
+            Text(context.l10n.tracksHeader, style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
           ],
         ),
       ),
@@ -324,12 +334,12 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
         coverUrl: track.coverUrl,
         onSelect: (quality, service) {
           ref.read(downloadQueueProvider.notifier).addToQueue(track, service, qualityOverride: quality);
-          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added "${track.name}" to queue')));
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
         },
       );
     } else {
       ref.read(downloadQueueProvider.notifier).addToQueue(track, settings.defaultService);
-      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added "${track.name}" to queue')));
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
     }
   }
 
@@ -344,12 +354,12 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
         artistName: widget.albumName,
         onSelect: (quality, service) {
           ref.read(downloadQueueProvider.notifier).addMultipleToQueue(tracks, service, qualityOverride: quality);
-          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added ${tracks.length} tracks to queue')));
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedTracksToQueue(tracks.length))));
         },
       );
     } else {
       ref.read(downloadQueueProvider.notifier).addMultipleToQueue(tracks, settings.defaultService);
-      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added ${tracks.length} tracks to queue')));
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedTracksToQueue(tracks.length))));
     }
   }
 
@@ -375,7 +385,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
                   crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
                     Text(
-                      'Rate Limited',
+                      context.l10n.errorRateLimited,
                       style: TextStyle(
                         color: colorScheme.onErrorContainer,
                         fontWeight: FontWeight.bold,
@@ -383,7 +393,7 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
                     ),
                     const SizedBox(height: 4),
                     Text(
-                      'Too many requests. Please wait a moment and try again.',
+                      context.l10n.errorRateLimitedMessage,
                       style: TextStyle(
                         color: colorScheme.onErrorContainer,
                         fontSize: 12,
@@ -398,7 +408,6 @@ class _AlbumScreenState extends ConsumerState<AlbumScreen> {
       );
     }
     
-    // Default error display
     return Card(
       elevation: 0,
       color: colorScheme.errorContainer.withValues(alpha: 0.5),
@@ -428,12 +437,10 @@ class _AlbumTrackItem extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Only watch the specific item for this track
     final queueItem = ref.watch(downloadQueueProvider.select((state) {
       return state.items.where((item) => item.track.id == track.id).firstOrNull;
     }));
     
-    // Check if track is in history (already downloaded before)
     final isInHistory = ref.watch(downloadHistoryProvider.select((state) {
       return state.isDownloaded(track.id);
     }));
@@ -444,7 +451,6 @@ class _AlbumTrackItem extends ConsumerWidget {
     final isCompleted = queueItem?.status == DownloadStatus.completed;
     final progress = queueItem?.progress ?? 0.0;
     
-    // Show as downloaded if in queue completed OR in history
     final showAsDownloaded = isCompleted || (!isQueued && isInHistory);
 
     return Padding(
@@ -476,7 +482,7 @@ class _AlbumTrackItem extends ConsumerWidget {
         final fileExists = await File(historyItem.filePath).exists();
         if (fileExists) {
           if (context.mounted) {
-            ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('"${track.name}" already downloaded')));
+            ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAlreadyDownloaded(track.name))));
           }
           return;
         } else {

lib/screens/artist_screen.dart

@@ -1,50 +1,87 @@
+import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:cached_network_image/cached_network_image.dart';
+import 'package:intl/intl.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/models/track.dart';
+import 'package:spotiflac_android/models/download_item.dart';
 import 'package:spotiflac_android/providers/track_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
+import 'package:spotiflac_android/providers/download_queue_provider.dart';
+import 'package:spotiflac_android/providers/recent_access_provider.dart';
 import 'package:spotiflac_android/services/platform_bridge.dart';
 import 'package:spotiflac_android/screens/album_screen.dart';
+import 'package:spotiflac_android/screens/home_tab.dart' show ExtensionAlbumScreen;
 
-/// Simple in-memory cache for artist discography
+/// Simple in-memory cache for artist data
 class _ArtistCache {
   static final Map<String, _CacheEntry> _cache = {};
   static const Duration _ttl = Duration(minutes: 10);
 
-  static List<ArtistAlbum>? get(String artistId) {
+  static _CacheEntry? get(String artistId) {
     final entry = _cache[artistId];
     if (entry == null) return null;
     if (DateTime.now().isAfter(entry.expiresAt)) {
       _cache.remove(artistId);
       return null;
     }
-    return entry.albums;
+    return entry;
   }
 
-  static void set(String artistId, List<ArtistAlbum> albums) {
-    _cache[artistId] = _CacheEntry(albums, DateTime.now().add(_ttl));
+  static void set(String artistId, {
+    required List<ArtistAlbum> albums,
+    List<Track>? topTracks,
+    String? headerImageUrl,
+    int? monthlyListeners,
+  }) {
+    _cache[artistId] = _CacheEntry(
+      albums: albums,
+      topTracks: topTracks,
+      headerImageUrl: headerImageUrl,
+      monthlyListeners: monthlyListeners,
+      expiresAt: DateTime.now().add(_ttl),
+    );
   }
 }
 
 class _CacheEntry {
   final List<ArtistAlbum> albums;
+  final List<Track>? topTracks;
+  final String? headerImageUrl;
+  final int? monthlyListeners;
   final DateTime expiresAt;
-  _CacheEntry(this.albums, this.expiresAt);
+  
+  _CacheEntry({
+    required this.albums,
+    this.topTracks,
+    this.headerImageUrl,
+    this.monthlyListeners,
+    required this.expiresAt,
+  });
 }
 
-/// Artist screen with Material Expressive 3 design - shows discography
+/// Artist screen with Spotify-like design
 class ArtistScreen extends ConsumerStatefulWidget {
   final String artistId;
   final String artistName;
   final String? coverUrl;
-  final List<ArtistAlbum>? albums; // Optional - will fetch if null
+  final String? headerImageUrl;
+  final int? monthlyListeners;
+  final List<ArtistAlbum>? albums;
+  final List<Track>? topTracks;
+  final String? extensionId; // If set, skip fetching from Spotify/Deezer
 
   const ArtistScreen({
     super.key,
     required this.artistId,
     required this.artistName,
     this.coverUrl,
+    this.headerImageUrl,
+    this.monthlyListeners,
     this.albums,
+    this.topTracks,
+    this.extensionId,
   });
 
   @override
@@ -54,14 +91,55 @@ class ArtistScreen extends ConsumerStatefulWidget {
 class _ArtistScreenState extends ConsumerState<ArtistScreen> {
   bool _isLoadingDiscography = false;
   List<ArtistAlbum>? _albums;
+  List<Track>? _topTracks;
+  String? _headerImageUrl;
+  int? _monthlyListeners;
   String? _error;
 
   @override
   void initState() {
     super.initState();
-    // Priority: widget.albums > cache > fetch
-    _albums = widget.albums ?? _ArtistCache.get(widget.artistId);
-    if (_albums == null) {
+    
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      final providerId = widget.extensionId ?? 
+                        (widget.artistId.startsWith('deezer:') ? 'deezer' : 'spotify');
+      ref.read(recentAccessProvider.notifier).recordArtistAccess(
+        id: widget.artistId,
+        name: widget.artistName,
+        imageUrl: widget.coverUrl,
+        providerId: providerId,
+      );
+    });
+    
+    if (widget.extensionId != null) {
+      _albums = widget.albums;
+      _topTracks = widget.topTracks;
+      _headerImageUrl = widget.headerImageUrl;
+      _monthlyListeners = widget.monthlyListeners;
+      return;
+    }
+    
+    final cached = _ArtistCache.get(widget.artistId);
+    
+    if (widget.albums != null) {
+      _albums = widget.albums;
+      _topTracks = widget.topTracks;
+      _headerImageUrl = widget.headerImageUrl;
+      _monthlyListeners = widget.monthlyListeners;
+      
+      if (_topTracks == null || _topTracks!.isEmpty) {
+        _fetchDiscography();
+      }
+    } else if (cached != null) {
+      _albums = cached.albums;
+      _topTracks = cached.topTracks;
+      _headerImageUrl = cached.headerImageUrl;
+      _monthlyListeners = cached.monthlyListeners;
+      
+      if (_topTracks == null || _topTracks!.isEmpty) {
+        _fetchDiscography();
+      }
+    } else {
       _fetchDiscography();
     }
   }
@@ -70,31 +148,55 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
     setState(() => _isLoadingDiscography = true);
     try {
       List<ArtistAlbum> albums;
+      List<Track>? topTracks;
+      String? headerImage;
+      int? listeners;
       
-      // Check if this is a Deezer artist ID (format: "deezer:123456")
       if (widget.artistId.startsWith('deezer:')) {
         final deezerArtistId = widget.artistId.replaceFirst('deezer:', '');
-        // ignore: avoid_print
-        print('[ArtistScreen] Fetching from Deezer: $deezerArtistId');
         final metadata = await PlatformBridge.getDeezerMetadata('artist', deezerArtistId);
         final albumsList = metadata['albums'] as List<dynamic>;
         albums = albumsList.map((a) => _parseArtistAlbum(a as Map<String, dynamic>)).toList();
       } else {
-        // Spotify artist - use fallback method
-        // ignore: avoid_print
-        print('[ArtistScreen] Fetching from Spotify with fallback: ${widget.artistId}');
         final url = 'https://open.spotify.com/artist/${widget.artistId}';
-        final metadata = await PlatformBridge.getSpotifyMetadataWithFallback(url);
-        final albumsList = metadata['albums'] as List<dynamic>;
-        albums = albumsList.map((a) => _parseArtistAlbum(a as Map<String, dynamic>)).toList();
+        final result = await PlatformBridge.handleURLWithExtension(url);
+        
+        if (result != null && result['artist'] != null) {
+          final artistData = result['artist'] as Map<String, dynamic>;
+          final albumsList = artistData['albums'] as List<dynamic>? ?? [];
+          albums = albumsList.map((a) => _parseArtistAlbum(a as Map<String, dynamic>)).toList();
+          
+          final topTracksList = artistData['top_tracks'] as List<dynamic>? ?? [];
+          if (topTracksList.isNotEmpty) {
+            topTracks = topTracksList.map((t) => _parseTrack(t as Map<String, dynamic>)).toList();
+          }
+          
+          headerImage = artistData['header_image'] as String?;
+          listeners = artistData['listeners'] as int?;
+        } else {
+          final metadata = await PlatformBridge.getSpotifyMetadataWithFallback(url);
+          final albumsList = metadata['albums'] as List<dynamic>;
+          albums = albumsList.map((a) => _parseArtistAlbum(a as Map<String, dynamic>)).toList();
+        }
       }
       
-      // Store in cache
-      _ArtistCache.set(widget.artistId, albums);
+      final finalHeaderImage = headerImage ?? _headerImageUrl ?? widget.headerImageUrl;
+      final finalListeners = listeners ?? _monthlyListeners ?? widget.monthlyListeners;
+      
+      _ArtistCache.set(
+        widget.artistId,
+        albums: albums,
+        topTracks: topTracks,
+        headerImageUrl: finalHeaderImage,
+        monthlyListeners: finalListeners,
+      );
       
       if (mounted) {
         setState(() {
           _albums = albums;
+          _topTracks = topTracks;
+          _headerImageUrl = finalHeaderImage;
+          _monthlyListeners = finalListeners;
           _isLoadingDiscography = false;
         });
       }
@@ -108,15 +210,41 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
     }
   }
 
+  Track _parseTrack(Map<String, dynamic> data) {
+    int durationMs = 0;
+    final durationValue = data['duration_ms'];
+    if (durationValue is int) {
+      durationMs = durationValue;
+    } else if (durationValue is double) {
+      durationMs = durationValue.toInt();
+    }
+    
+    return Track(
+      id: (data['spotify_id'] ?? data['id'] ?? '').toString(),
+      name: (data['name'] ?? '').toString(),
+      artistName: (data['artists'] ?? data['artist'] ?? '').toString(),
+      albumName: (data['album_name'] ?? data['album'] ?? '').toString(),
+      albumArtist: data['album_artist']?.toString(),
+      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
+      isrc: data['isrc']?.toString(),
+      duration: (durationMs / 1000).round(),
+      trackNumber: data['track_number'] as int?,
+      discNumber: data['disc_number'] as int?,
+      releaseDate: data['release_date']?.toString(),
+      source: data['provider_id']?.toString(),
+    );
+  }
+
   ArtistAlbum _parseArtistAlbum(Map<String, dynamic> data) {
     return ArtistAlbum(
       id: data['id'] as String? ?? '',
       name: data['name'] as String? ?? '',
       releaseDate: data['release_date'] as String? ?? '',
       totalTracks: data['total_tracks'] as int? ?? 0,
-      coverUrl: data['images'] as String?,
+      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
       albumType: data['album_type'] as String? ?? 'album',
       artists: data['artists'] as String? ?? '',
+      providerId: data['provider_id']?.toString(),
     );
   }
 
@@ -129,43 +257,58 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
     final compilations = albums.where((a) => a.albumType == 'compilation').toList();
 
     return Scaffold(
-      body: Stack(
-        children: [
-          CustomScrollView(
-            slivers: [
-              _buildAppBar(context, colorScheme),
-              _buildInfoCard(context, colorScheme),
-              if (_isLoadingDiscography)
-                const SliverToBoxAdapter(child: Padding(
-                  padding: EdgeInsets.all(32),
-                  child: Center(child: CircularProgressIndicator()),
-                )),
-              if (_error != null)
-                SliverToBoxAdapter(child: Padding(
-                  padding: const EdgeInsets.all(16),
-                  child: _buildErrorWidget(_error!, colorScheme),
-                )),
-              if (!_isLoadingDiscography && _error == null) ...[
-                if (albumsOnly.isNotEmpty) SliverToBoxAdapter(child: _buildAlbumSection('Albums', albumsOnly, colorScheme)),
-                if (singles.isNotEmpty) SliverToBoxAdapter(child: _buildAlbumSection('Singles & EPs', singles, colorScheme)),
-                if (compilations.isNotEmpty) SliverToBoxAdapter(child: _buildAlbumSection('Compilations', compilations, colorScheme)),
-              ],
-              const SliverToBoxAdapter(child: SizedBox(height: 32)),
-            ],
-          ),
+      body: CustomScrollView(
+        slivers: [
+          _buildHeader(context, colorScheme),
+          if (_isLoadingDiscography)
+            const SliverToBoxAdapter(child: Padding(
+              padding: EdgeInsets.all(32),
+              child: Center(child: CircularProgressIndicator()),
+            )),
+          if (_error != null)
+            SliverToBoxAdapter(child: Padding(
+              padding: const EdgeInsets.all(16),
+              child: _buildErrorWidget(_error!, colorScheme),
+            )),
+          if (!_isLoadingDiscography && _error == null) ...[
+            if (_topTracks != null && _topTracks!.isNotEmpty)
+              SliverToBoxAdapter(child: _buildPopularSection(colorScheme)),
+            if (albumsOnly.isNotEmpty) 
+              SliverToBoxAdapter(child: _buildAlbumSection(context.l10n.artistAlbums, albumsOnly, colorScheme)),
+            if (singles.isNotEmpty) 
+              SliverToBoxAdapter(child: _buildAlbumSection(context.l10n.artistSingles, singles, colorScheme)),
+            if (compilations.isNotEmpty) 
+              SliverToBoxAdapter(child: _buildAlbumSection(context.l10n.artistCompilations, compilations, colorScheme)),
+          ],
+          const SliverToBoxAdapter(child: SizedBox(height: 32)),
         ],
       ),
     );
   }
 
-  Widget _buildAppBar(BuildContext context, ColorScheme colorScheme) {
-    // Validate image URL - must be non-null, non-empty, and have a valid host
-    final hasValidImage = widget.coverUrl != null && 
-                          widget.coverUrl!.isNotEmpty &&
-                          Uri.tryParse(widget.coverUrl!)?.hasAuthority == true;
+  /// Build Spotify-style header with full-width image and artist name overlay
+  Widget _buildHeader(BuildContext context, ColorScheme colorScheme) {
+    String? imageUrl = _headerImageUrl;
+    if (imageUrl == null || imageUrl.isEmpty) {
+      imageUrl = widget.headerImageUrl;
+    }
+    if (imageUrl == null || imageUrl.isEmpty) {
+      imageUrl = widget.coverUrl;
+    }
+    
+    final hasValidImage = imageUrl != null && 
+                          imageUrl.isNotEmpty &&
+                          Uri.tryParse(imageUrl)?.hasAuthority == true;
+    
+    String? listenersText;
+    final listeners = _monthlyListeners ?? widget.monthlyListeners;
+    if (listeners != null && listeners > 0) {
+      final formatter = NumberFormat.compact();
+      listenersText = context.l10n.artistMonthlyListeners(formatter.format(listeners));
+    }
     
     return SliverAppBar(
-      expandedHeight: 280,
+      expandedHeight: 380,
       pinned: true,
       stretch: true,
       backgroundColor: colorScheme.surface,
@@ -176,47 +319,79 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
           children: [
             if (hasValidImage)
               CachedNetworkImage(
-                imageUrl: widget.coverUrl!, 
-                fit: BoxFit.cover, 
-                color: Colors.black.withValues(alpha: 0.5), 
-                colorBlendMode: BlendMode.darken, 
-                memCacheWidth: 600,
-                errorWidget: (context, url, error) => Container(color: colorScheme.surfaceContainerHighest),
+                imageUrl: imageUrl,
+                fit: BoxFit.cover,
+                alignment: Alignment.topCenter, // Show top of image (faces)
+                memCacheWidth: 800,
+                placeholder: (context, url) => Container(
+                  color: colorScheme.surfaceContainerHighest,
+                ),
+                errorWidget: (context, url, error) => Container(
+                  color: colorScheme.surfaceContainerHighest,
+                  child: Icon(Icons.person, size: 80, color: colorScheme.onSurfaceVariant),
+                ),
+              )
+            else
+              Container(
+                color: colorScheme.surfaceContainerHighest,
+                child: Icon(Icons.person, size: 80, color: colorScheme.onSurfaceVariant),
               ),
             Container(
               decoration: BoxDecoration(
                 gradient: LinearGradient(
                   begin: Alignment.topCenter,
                   end: Alignment.bottomCenter,
-                  colors: [Colors.transparent, colorScheme.surface.withValues(alpha: 0.8), colorScheme.surface],
-                  stops: const [0.0, 0.7, 1.0],
+                  colors: [
+                    Colors.transparent,
+                    Colors.black.withValues(alpha: 0.3),
+                    Colors.black.withValues(alpha: 0.7),
+                    colorScheme.surface,
+                  ],
+                  stops: const [0.0, 0.5, 0.75, 1.0],
                 ),
               ),
             ),
-            Center(
-              child: Padding(
-                padding: const EdgeInsets.only(top: 60),
-                child: Container(
-                  width: 140,
-                  height: 140,
-                  decoration: BoxDecoration(
-                    shape: BoxShape.circle,
-                    boxShadow: [BoxShadow(color: Colors.black.withValues(alpha: 0.3), blurRadius: 20, offset: const Offset(0, 10))],
+            Positioned(
+              left: 16,
+              right: 16,
+              bottom: 16,
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Text(
+                    widget.artistName,
+                    style: Theme.of(context).textTheme.headlineLarge?.copyWith(
+                      fontWeight: FontWeight.bold,
+                      color: Colors.white,
+                      shadows: [
+                        Shadow(
+                          offset: const Offset(0, 1),
+                          blurRadius: 4,
+                          color: Colors.black.withValues(alpha: 0.5),
+                        ),
+                      ],
+                    ),
+                    maxLines: 2,
+                    overflow: TextOverflow.ellipsis,
                   ),
-                  child: ClipOval(
-                    child: hasValidImage
-                        ? CachedNetworkImage(
-                            imageUrl: widget.coverUrl!, 
-                            fit: BoxFit.cover, 
-                            memCacheWidth: 280,
-                            errorWidget: (context, url, error) => Container(
-                              color: colorScheme.surfaceContainerHighest, 
-                              child: Icon(Icons.person, size: 48, color: colorScheme.onSurfaceVariant),
-                            ),
-                          )
-                        : Container(color: colorScheme.surfaceContainerHighest, child: Icon(Icons.person, size: 48, color: colorScheme.onSurfaceVariant)),
-                  ),
-                ),
+                  if (listenersText != null) ...[
+                    const SizedBox(height: 4),
+                    Text(
+                      listenersText,
+                      style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                        color: Colors.white.withValues(alpha: 0.8),
+                        shadows: [
+                          Shadow(
+                            offset: const Offset(0, 1),
+                            blurRadius: 2,
+                            color: Colors.black.withValues(alpha: 0.5),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ],
+                ],
               ),
             ),
           ],
@@ -224,44 +399,272 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
         stretchModes: const [StretchMode.zoomBackground, StretchMode.blurBackground],
       ),
       leading: IconButton(
-        icon: Container(padding: const EdgeInsets.all(8), decoration: BoxDecoration(color: colorScheme.surface.withValues(alpha: 0.8), shape: BoxShape.circle), child: Icon(Icons.arrow_back, color: colorScheme.onSurface)),
+        icon: Container(
+          padding: const EdgeInsets.all(8),
+          decoration: BoxDecoration(
+            color: Colors.black.withValues(alpha: 0.4),
+            shape: BoxShape.circle,
+          ),
+          child: const Icon(Icons.arrow_back, color: Colors.white),
+        ),
         onPressed: () => Navigator.pop(context),
       ),
     );
   }
 
-  Widget _buildInfoCard(BuildContext context, ColorScheme colorScheme) {
-    return SliverToBoxAdapter(
-      child: Padding(
-        padding: const EdgeInsets.all(16),
-        child: Card(
-          elevation: 0,
-          color: colorScheme.surfaceContainerLow,
-          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
-          child: Padding(
-            padding: const EdgeInsets.all(20),
-            child: Column(
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: [
-                Text(widget.artistName, style: Theme.of(context).textTheme.headlineSmall?.copyWith(fontWeight: FontWeight.bold, color: colorScheme.onSurface)),
-                const SizedBox(height: 8),
-                if (_albums != null)
-                  Container(
-                    padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
-                    decoration: BoxDecoration(color: colorScheme.primaryContainer, borderRadius: BorderRadius.circular(20)),
-                    child: Row(
-                      mainAxisSize: MainAxisSize.min,
-                      children: [
-                        Icon(Icons.album, size: 14, color: colorScheme.onPrimaryContainer),
-                        const SizedBox(width: 4),
-                        Text('${_albums!.length} releases', style: TextStyle(color: colorScheme.onPrimaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
-                      ],
-                    ),
-                  ),
-              ],
+  /// Build Popular tracks section like Spotify
+  Widget _buildPopularSection(ColorScheme colorScheme) {
+    if (_topTracks == null || _topTracks!.isEmpty) return const SizedBox.shrink();
+    
+    final tracks = _topTracks!.take(5).toList();
+    
+    return Column(
+      crossAxisAlignment: CrossAxisAlignment.start,
+      children: [
+        Padding(
+          padding: const EdgeInsets.fromLTRB(16, 24, 16, 12),
+          child: Text(
+            context.l10n.artistPopular,
+            style: Theme.of(context).textTheme.titleLarge?.copyWith(
+              fontWeight: FontWeight.bold,
             ),
           ),
         ),
+        ...tracks.asMap().entries.map((entry) {
+          final index = entry.key;
+          final track = entry.value;
+          return _buildPopularTrackItem(index + 1, track, colorScheme);
+        }),
+      ],
+    );
+  }
+
+  /// Build a single popular track item with dynamic download status
+  Widget _buildPopularTrackItem(int rank, Track track, ColorScheme colorScheme) {
+    final queueItem = ref.watch(downloadQueueProvider.select((state) {
+      return state.items.where((item) => item.track.id == track.id).firstOrNull;
+    }));
+    
+    final isInHistory = ref.watch(downloadHistoryProvider.select((state) {
+      return state.isDownloaded(track.id);
+    }));
+    
+    final isQueued = queueItem != null;
+    final isDownloading = queueItem?.status == DownloadStatus.downloading;
+    final isFinalizing = queueItem?.status == DownloadStatus.finalizing;
+    final isCompleted = queueItem?.status == DownloadStatus.completed;
+    final progress = queueItem?.progress ?? 0.0;
+    
+    final showAsDownloaded = isCompleted || (!isQueued && isInHistory);
+    
+    return InkWell(
+      onTap: () => _handlePopularTrackTap(track, isQueued: isQueued, isInHistory: isInHistory),
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+        child: Row(
+          children: [
+            SizedBox(
+              width: 24,
+              child: Text(
+                '$rank',
+                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                  color: colorScheme.onSurfaceVariant,
+                ),
+                textAlign: TextAlign.center,
+              ),
+            ),
+            const SizedBox(width: 12),
+            ClipRRect(
+              borderRadius: BorderRadius.circular(4),
+              child: track.coverUrl != null
+                  ? CachedNetworkImage(
+                      imageUrl: track.coverUrl!,
+                      width: 48,
+                      height: 48,
+                      fit: BoxFit.cover,
+                      memCacheWidth: 96,
+                      placeholder: (context, url) => Container(
+                        width: 48,
+                        height: 48,
+                        color: colorScheme.surfaceContainerHighest,
+                      ),
+                      errorWidget: (context, url, error) => Container(
+                        width: 48,
+                        height: 48,
+                        color: colorScheme.surfaceContainerHighest,
+                        child: Icon(Icons.music_note, color: colorScheme.onSurfaceVariant, size: 24),
+                      ),
+                    )
+                  : Container(
+                      width: 48,
+                      height: 48,
+                      color: colorScheme.surfaceContainerHighest,
+                      child: Icon(Icons.music_note, color: colorScheme.onSurfaceVariant, size: 24),
+                    ),
+            ),
+            const SizedBox(width: 12),
+            Expanded(
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    track.name,
+                    style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                      fontWeight: FontWeight.w500,
+                    ),
+                    maxLines: 1,
+                    overflow: TextOverflow.ellipsis,
+                  ),
+                  if (track.albumName.isNotEmpty)
+                    Text(
+                      track.albumName,
+                      style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                        color: colorScheme.onSurfaceVariant,
+                      ),
+                      maxLines: 1,
+                      overflow: TextOverflow.ellipsis,
+                    ),
+                ],
+              ),
+            ),
+            _buildPopularDownloadButton(
+              track: track,
+              colorScheme: colorScheme,
+              isQueued: isQueued,
+              isDownloading: isDownloading,
+              isFinalizing: isFinalizing,
+              showAsDownloaded: showAsDownloaded,
+              isInHistory: isInHistory,
+              progress: progress,
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// Handle tap on popular track item
+  void _handlePopularTrackTap(Track track, {required bool isQueued, required bool isInHistory}) async {
+    if (isQueued) return;
+    
+    if (isInHistory) {
+      final historyItem = ref.read(downloadHistoryProvider.notifier).getBySpotifyId(track.id);
+      if (historyItem != null) {
+        final fileExists = await File(historyItem.filePath).exists();
+        if (fileExists) {
+          if (mounted) {
+            ScaffoldMessenger.of(context).showSnackBar(
+              SnackBar(content: Text(context.l10n.snackbarAlreadyDownloaded(track.name))),
+            );
+          }
+          return;
+        } else {
+          ref.read(downloadHistoryProvider.notifier).removeBySpotifyId(track.id);
+        }
+      }
+    }
+    
+    _downloadTrack(track);
+  }
+
+  /// Build download button with status indicator for popular tracks
+  Widget _buildPopularDownloadButton({
+    required Track track,
+    required ColorScheme colorScheme,
+    required bool isQueued,
+    required bool isDownloading,
+    required bool isFinalizing,
+    required bool showAsDownloaded,
+    required bool isInHistory,
+    required double progress,
+  }) {
+    const double size = 40.0;
+    const double iconSize = 20.0;
+    
+    if (showAsDownloaded) {
+      return GestureDetector(
+        onTap: () => _handlePopularTrackTap(track, isQueued: isQueued, isInHistory: isInHistory),
+        child: Container(
+          width: size,
+          height: size,
+          decoration: BoxDecoration(
+            color: colorScheme.primaryContainer,
+            shape: BoxShape.circle,
+          ),
+          child: Icon(Icons.check, color: colorScheme.onPrimaryContainer, size: iconSize),
+        ),
+      );
+    } else if (isFinalizing) {
+      return SizedBox(
+        width: size,
+        height: size,
+        child: Stack(
+          alignment: Alignment.center,
+          children: [
+            CircularProgressIndicator(
+              strokeWidth: 2.5,
+              color: colorScheme.tertiary,
+              backgroundColor: colorScheme.surfaceContainerHighest,
+            ),
+            Icon(Icons.edit_note, color: colorScheme.tertiary, size: 14),
+          ],
+        ),
+      );
+    } else if (isDownloading) {
+      return SizedBox(
+        width: size,
+        height: size,
+        child: Stack(
+          alignment: Alignment.center,
+          children: [
+            CircularProgressIndicator(
+              value: progress > 0 ? progress : null,
+              strokeWidth: 2.5,
+              color: colorScheme.primary,
+              backgroundColor: colorScheme.surfaceContainerHighest,
+            ),
+            if (progress > 0)
+              Text(
+                '${(progress * 100).toInt()}',
+                style: TextStyle(fontSize: 9, fontWeight: FontWeight.bold, color: colorScheme.primary),
+              ),
+          ],
+        ),
+      );
+    } else if (isQueued) {
+      return Container(
+        width: size,
+        height: size,
+        decoration: BoxDecoration(
+          color: colorScheme.surfaceContainerHighest,
+          shape: BoxShape.circle,
+        ),
+        child: Icon(Icons.hourglass_empty, color: colorScheme.onSurfaceVariant, size: iconSize),
+      );
+    } else {
+      return GestureDetector(
+        onTap: () => _downloadTrack(track),
+        child: Container(
+          width: size,
+          height: size,
+          decoration: BoxDecoration(
+            color: colorScheme.secondaryContainer,
+            shape: BoxShape.circle,
+          ),
+          child: Icon(Icons.download, color: colorScheme.onSecondaryContainer, size: iconSize),
+        ),
+      );
+    }
+  }
+
+  void _downloadTrack(Track track) {
+    final settings = ref.read(settingsProvider);
+    ref.read(settingsProvider.notifier).setHasSearchedBefore();
+    ref.read(downloadQueueProvider.notifier).addToQueue(track, settings.defaultService);
+    ScaffoldMessenger.of(context).showSnackBar(
+      SnackBar(
+        content: Text(context.l10n.snackbarAddedToQueue(track.name)),
+        duration: const Duration(seconds: 2),
       ),
     );
   }
@@ -271,24 +674,26 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
         Padding(
-          padding: const EdgeInsets.fromLTRB(20, 16, 20, 8),
-          child: Row(
-            children: [
-              Icon(Icons.album, size: 20, color: colorScheme.primary),
-              const SizedBox(width: 8),
-              Text('$title (${albums.length})', style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.primary)),
-            ],
+          padding: const EdgeInsets.fromLTRB(16, 24, 16, 12),
+          child: Text(
+            '$title (${albums.length})',
+            style: Theme.of(context).textTheme.titleLarge?.copyWith(
+              fontWeight: FontWeight.bold,
+            ),
           ),
         ),
         SizedBox(
-          height: 210,
+          height: 220,
           child: ListView.builder(
             scrollDirection: Axis.horizontal,
             padding: const EdgeInsets.symmetric(horizontal: 12),
             itemCount: albums.length,
             itemBuilder: (context, index) {
               final album = albums[index];
-              return KeyedSubtree(key: ValueKey(album.id), child: _buildAlbumCard(album, colorScheme));
+              return KeyedSubtree(
+                key: ValueKey(album.id),
+                child: _buildAlbumCard(album, colorScheme),
+              );
             },
           ),
         ),
@@ -301,62 +706,87 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
       onTap: () => _navigateToAlbum(album),
       child: Container(
         width: 140,
-        margin: const EdgeInsets.symmetric(horizontal: 6),
-        child: Card(
-          elevation: 0,
-          color: colorScheme.surfaceContainerLow,
-          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
-          child: Padding(
-            padding: const EdgeInsets.all(8),
-            child: Column(
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: [
-                ClipRRect(
-                  borderRadius: BorderRadius.circular(12),
-                  child: album.coverUrl != null
-                      ? CachedNetworkImage(imageUrl: album.coverUrl!, width: 124, height: 124, fit: BoxFit.cover, memCacheWidth: 248)
-                      : Container(width: 124, height: 124, color: colorScheme.surfaceContainerHighest, child: Icon(Icons.album, color: colorScheme.onSurfaceVariant, size: 40)),
-                ),
-                const SizedBox(height: 6),
-                Expanded(
-                  child: Column(
-                    crossAxisAlignment: CrossAxisAlignment.start,
-                    children: [
-                      Text(album.name, style: Theme.of(context).textTheme.bodySmall?.copyWith(fontWeight: FontWeight.w600), maxLines: 2, overflow: TextOverflow.ellipsis),
-                      const Spacer(),
-                      Text(
-                        album.totalTracks > 0 
-                            ? '${album.releaseDate.length >= 4 ? album.releaseDate.substring(0, 4) : album.releaseDate} • ${album.totalTracks} tracks'
-                            : album.releaseDate.length >= 4 ? album.releaseDate.substring(0, 4) : album.releaseDate,
-                        style: Theme.of(context).textTheme.bodySmall?.copyWith(color: colorScheme.onSurfaceVariant, fontSize: 11),
-                        maxLines: 1,
-                        overflow: TextOverflow.ellipsis,
+        margin: const EdgeInsets.symmetric(horizontal: 4),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [
+            ClipRRect(
+              borderRadius: BorderRadius.circular(8),
+              child: album.coverUrl != null
+                  ? CachedNetworkImage(
+                      imageUrl: album.coverUrl!,
+                      width: 140,
+                      height: 140,
+                      fit: BoxFit.cover,
+                      memCacheWidth: 280,
+                      placeholder: (context, url) => Container(
+                        width: 140,
+                        height: 140,
+                        color: colorScheme.surfaceContainerHighest,
                       ),
-                    ],
-                  ),
-                ),
-              ],
+                      errorWidget: (context, url, error) => Container(
+                        width: 140,
+                        height: 140,
+                        color: colorScheme.surfaceContainerHighest,
+                        child: Icon(Icons.album, color: colorScheme.onSurfaceVariant, size: 40),
+                      ),
+                    )
+                  : Container(
+                      width: 140,
+                      height: 140,
+                      color: colorScheme.surfaceContainerHighest,
+                      child: Icon(Icons.album, color: colorScheme.onSurfaceVariant, size: 40),
+                    ),
             ),
-          ),
+            const SizedBox(height: 8),
+            Text(
+              album.name,
+              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                fontWeight: FontWeight.w500,
+              ),
+              maxLines: 2,
+              overflow: TextOverflow.ellipsis,
+            ),
+            const SizedBox(height: 2),
+            Text(
+              album.totalTracks > 0 
+                  ? '${album.releaseDate.length >= 4 ? album.releaseDate.substring(0, 4) : album.releaseDate} ${context.l10n.tracksCount(album.totalTracks)}'
+                  : album.releaseDate.length >= 4 ? album.releaseDate.substring(0, 4) : album.releaseDate,
+              style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                color: colorScheme.onSurfaceVariant,
+              ),
+              maxLines: 1,
+              overflow: TextOverflow.ellipsis,
+            ),
+          ],
         ),
       ),
     );
   }
 
   void _navigateToAlbum(ArtistAlbum album) {
-    // Navigate immediately with data from artist discography, fetch tracks in AlbumScreen
     ref.read(settingsProvider.notifier).setHasSearchedBefore();
-    Navigator.push(context, MaterialPageRoute(
-      builder: (context) => AlbumScreen(
-        albumId: album.id,
-        albumName: album.name,
-        coverUrl: album.coverUrl,
-        // tracks: null - will be fetched in AlbumScreen
-      ),
-    ));
+    
+    if (album.providerId != null && album.providerId!.isNotEmpty) {
+      Navigator.push(context, MaterialPageRoute(
+        builder: (context) => ExtensionAlbumScreen(
+          extensionId: album.providerId!,
+          albumId: album.id,
+          albumName: album.name,
+          coverUrl: album.coverUrl,
+        ),
+      ));
+    } else {
+      Navigator.push(context, MaterialPageRoute(
+        builder: (context) => AlbumScreen(
+          albumId: album.id,
+          albumName: album.name,
+          coverUrl: album.coverUrl,
+        ),
+      ));
+    }
   }
 
-  /// Build error widget with special handling for rate limit (429)
   Widget _buildErrorWidget(String error, ColorScheme colorScheme) {
     final isRateLimit = error.contains('429') || 
                         error.toLowerCase().contains('rate limit') ||
@@ -366,7 +796,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
       return Card(
         elevation: 0,
         color: colorScheme.errorContainer,
-        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
         child: Padding(
           padding: const EdgeInsets.all(16),
           child: Row(
@@ -378,7 +808,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                   crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
                     Text(
-                      'Rate Limited',
+                      context.l10n.errorRateLimited,
                       style: TextStyle(
                         color: colorScheme.onErrorContainer,
                         fontWeight: FontWeight.bold,
@@ -386,7 +816,7 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
                     ),
                     const SizedBox(height: 4),
                     Text(
-                      'Too many requests. Please wait a moment and try again.',
+                      context.l10n.errorRateLimitedMessage,
                       style: TextStyle(
                         color: colorScheme.onErrorContainer,
                         fontSize: 12,
@@ -401,11 +831,10 @@ class _ArtistScreenState extends ConsumerState<ArtistScreen> {
       );
     }
     
-    // Default error display
     return Card(
       elevation: 0,
       color: colorScheme.errorContainer.withValues(alpha: 0.5),
-      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(20)),
+      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
       child: Padding(
         padding: const EdgeInsets.all(16),
         child: Row(

lib/screens/downloaded_album_screen.dart

@@ -4,6 +4,8 @@ import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:open_filex/open_filex.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/utils/mime_utils.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/screens/track_metadata_screen.dart';
 
@@ -25,7 +27,6 @@ class DownloadedAlbumScreen extends ConsumerStatefulWidget {
 }
 
 class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
-  // Multi-select state
   bool _isSelectionMode = false;
   final Set<String> _selectedIds = {};
 
@@ -83,19 +84,19 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
     final confirmed = await showDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
-        title: const Text('Delete Selected'),
-        content: Text('Delete $count ${count == 1 ? 'track' : 'tracks'} from this album?\n\nThis will also delete the files from storage.'),
+        title: Text(context.l10n.downloadedAlbumDeleteSelected),
+        content: Text(context.l10n.downloadedAlbumDeleteMessage(count)),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(ctx, false),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           FilledButton(
             onPressed: () => Navigator.pop(ctx, true),
             style: FilledButton.styleFrom(
               backgroundColor: Theme.of(context).colorScheme.error,
             ),
-            child: const Text('Delete'),
+            child: Text(context.l10n.dialogDelete),
           ),
         ],
       ),
@@ -124,7 +125,7 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
       
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(content: Text('Deleted $deletedCount ${deletedCount == 1 ? 'track' : 'tracks'}')),
+          SnackBar(content: Text(context.l10n.snackbarDeletedTracks(deletedCount))),
         );
       }
     }
@@ -132,11 +133,12 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
 
   Future<void> _openFile(String filePath) async {
     try {
-      await OpenFilex.open(filePath);
+      final mimeType = audioMimeTypeForPath(filePath);
+      await OpenFilex.open(filePath, type: mimeType);
     } catch (e) {
       if (mounted) {
         ScaffoldMessenger.of(context).showSnackBar(
-          SnackBar(content: Text('Cannot open file: $e')),
+          SnackBar(content: Text(context.l10n.snackbarCannotOpenFile(e.toString()))),
         );
       }
     }
@@ -156,11 +158,9 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
     final colorScheme = Theme.of(context).colorScheme;
     final bottomPadding = MediaQuery.of(context).padding.bottom;
     
-    // Watch history and get tracks for this album (reactive!)
     final allHistoryItems = ref.watch(downloadHistoryProvider.select((s) => s.items));
     final tracks = _getAlbumTracks(allHistoryItems);
     
-    // Auto-pop if album has less than 2 tracks (no longer an "album")
     if (tracks.length < 2) {
       WidgetsBinding.instance.addPostFrameCallback((_) {
         if (mounted) Navigator.pop(context);
@@ -168,7 +168,6 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
       return const SizedBox.shrink();
     }
     
-    // Clean up selected IDs that no longer exist
     final validIds = tracks.map((t) => t.id).toSet();
     _selectedIds.removeWhere((id) => !validIds.contains(id));
     if (_selectedIds.isEmpty && _isSelectionMode) {
@@ -197,7 +196,6 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
               ],
             ),
             
-            // Bottom Selection Action Bar
             AnimatedPositioned(
               duration: const Duration(milliseconds: 250),
               curve: Curves.easeOutCubic,
@@ -321,7 +319,7 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
                         children: [
                           Icon(Icons.download_done, size: 14, color: colorScheme.onPrimaryContainer),
                           const SizedBox(width: 4),
-                          Text('${tracks.length} downloaded', style: TextStyle(color: colorScheme.onPrimaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
+                          Text(context.l10n.downloadedAlbumDownloadedCount(tracks.length), style: TextStyle(color: colorScheme.onPrimaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
                         ],
                       ),
                     ),
@@ -374,13 +372,13 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
           children: [
             Icon(Icons.queue_music, size: 20, color: colorScheme.primary),
             const SizedBox(width: 8),
-            Text('Tracks', style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
+            Text(context.l10n.downloadedAlbumTracksHeader, style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
             const Spacer(),
             if (!_isSelectionMode)
               TextButton.icon(
                 onPressed: tracks.isNotEmpty ? () => _enterSelectionMode(tracks.first.id) : null,
                 icon: const Icon(Icons.checklist, size: 18),
-                label: const Text('Select'),
+                label: Text(context.l10n.actionSelect),
                 style: TextButton.styleFrom(visualDensity: VisualDensity.compact),
               ),
           ],
@@ -521,11 +519,11 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
                       crossAxisAlignment: CrossAxisAlignment.start,
                       children: [
                         Text(
-                          '$selectedCount selected',
+                          context.l10n.downloadedAlbumSelectedCount(selectedCount),
                           style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.bold),
                         ),
                         Text(
-                          allSelected ? 'All tracks selected' : 'Tap tracks to select',
+                          allSelected ? context.l10n.downloadedAlbumAllSelected : context.l10n.downloadedAlbumTapToSelect,
                           style: Theme.of(context).textTheme.bodySmall?.copyWith(color: colorScheme.onSurfaceVariant),
                         ),
                       ],
@@ -540,7 +538,7 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
                       }
                     },
                     icon: Icon(allSelected ? Icons.deselect : Icons.select_all, size: 20),
-                    label: Text(allSelected ? 'Deselect' : 'Select All'),
+                    label: Text(allSelected ? context.l10n.actionDeselect : context.l10n.actionSelectAll),
                     style: TextButton.styleFrom(foregroundColor: colorScheme.primary),
                   ),
                 ],
@@ -553,8 +551,8 @@ class _DownloadedAlbumScreenState extends ConsumerState<DownloadedAlbumScreen> {
                   icon: const Icon(Icons.delete_outline),
                   label: Text(
                     selectedCount > 0 
-                        ? 'Delete $selectedCount ${selectedCount == 1 ? 'track' : 'tracks'}'
-                        : 'Select tracks to delete',
+                        ? context.l10n.downloadedAlbumDeleteCount(selectedCount)
+                        : context.l10n.downloadedAlbumSelectToDelete,
                   ),
                   style: FilledButton.styleFrom(
                     backgroundColor: selectedCount > 0 ? colorScheme.error : colorScheme.surfaceContainerHighest,

lib/screens/home_screen.dart

@@ -6,6 +6,8 @@ import 'package:cached_network_image/cached_network_image.dart';
 import 'package:spotiflac_android/providers/track_provider.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
+import 'package:spotiflac_android/models/track.dart';
+import 'package:spotiflac_android/services/platform_bridge.dart';
 
 class HomeScreen extends ConsumerStatefulWidget {
   const HomeScreen({super.key});
@@ -73,7 +75,6 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
     setState(() => _currentIndex = index);
     switch (index) {
       case 0:
-        // Already on home
         break;
       case 1:
         context.push('/queue');
@@ -110,7 +111,6 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
       body: Column(
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
-          // URL Input
           Padding(
             padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
             child: TextField(
@@ -130,7 +130,6 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
             ),
           ),
 
-          // Error message
           if (trackState.error != null)
             Padding(
               padding: const EdgeInsets.symmetric(horizontal: 16.0),
@@ -140,15 +139,12 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
               ),
             ),
 
-          // Loading indicator
           if (trackState.isLoading)
             LinearProgressIndicator(color: colorScheme.primary),
 
-          // Album/Playlist header
           if (trackState.albumName != null || trackState.playlistName != null)
             _buildHeader(trackState, colorScheme),
 
-          // Download All button
           if (trackState.tracks.length > 1)
             Padding(
               padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
@@ -162,7 +158,6 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
               ),
             ),
 
-          // Track list
           Expanded(
             child: trackState.tracks.isEmpty
                 ? _buildEmptyState(colorScheme)
@@ -250,7 +245,6 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
                 ],
               ),
             ),
-            // Play all button
             FilledButton.tonal(
               onPressed: _downloadAll,
               style: FilledButton.styleFrom(
@@ -267,6 +261,22 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
 
   Widget _buildTrackTile(int index, ColorScheme colorScheme) {
     final track = ref.watch(trackProvider).tracks[index];
+    final isCollection = track.isCollection;
+    
+    String subtitleText;
+    if (isCollection) {
+      final typeLabel = track.albumType ?? (track.isPlaylistItem ? 'Playlist' : 'Album');
+      final capitalizedType = typeLabel.isNotEmpty 
+          ? '${typeLabel[0].toUpperCase()}${typeLabel.substring(1)}' 
+          : 'Album';
+      final year = track.releaseDate != null && track.releaseDate!.length >= 4
+          ? track.releaseDate!.substring(0, 4) 
+          : '';
+      subtitleText = '$capitalizedType • ${track.artistName}${year.isNotEmpty ? ' • $year' : ''}';
+    } else {
+      subtitleText = track.artistName;
+    }
+    
     return ListTile(
       leading: track.coverUrl != null
           ? ClipRRect(
@@ -285,22 +295,85 @@ class _HomeScreenState extends ConsumerState<HomeScreen> {
                 color: colorScheme.surfaceContainerHighest,
                 borderRadius: BorderRadius.circular(8),
               ),
-              child: Icon(Icons.music_note, color: colorScheme.onSurfaceVariant),
+              child: Icon(
+                isCollection ? Icons.album : Icons.music_note, 
+                color: colorScheme.onSurfaceVariant,
+              ),
             ),
       title: Text(track.name, maxLines: 1, overflow: TextOverflow.ellipsis),
       subtitle: Text(
-        track.artistName, 
+        subtitleText, 
         maxLines: 1, 
         overflow: TextOverflow.ellipsis,
         style: TextStyle(color: colorScheme.onSurfaceVariant),
       ),
-      trailing: Text(
-        _formatDuration(track.duration),
-        style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-          color: colorScheme.onSurfaceVariant,
-        ),
-      ),
-      onTap: () => _downloadTrack(index),
+      trailing: isCollection 
+          ? Icon(Icons.chevron_right, color: colorScheme.onSurfaceVariant)
+          : Text(
+              _formatDuration(track.duration),
+              style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                color: colorScheme.onSurfaceVariant,
+              ),
+            ),
+      onTap: () => isCollection ? _openCollection(track) : _downloadTrack(index),
+    );
+  }
+  
+  Future<void> _openCollection(Track track) async {
+    final extensionId = track.source;
+    if (extensionId == null) return;
+    
+    try {
+      if (track.isAlbumItem) {
+        final albumData = await PlatformBridge.getAlbumWithExtension(extensionId, track.id);
+        if (albumData != null && mounted) {
+          final trackList = albumData['tracks'] as List<dynamic>? ?? [];
+          final tracks = trackList.map((t) => _parseExtensionTrack(t as Map<String, dynamic>, extensionId)).toList();
+          ref.read(trackProvider.notifier).setTracksFromCollection(
+            tracks: tracks,
+            albumName: albumData['name'] as String? ?? track.name,
+            coverUrl: albumData['cover_url'] as String? ?? track.coverUrl,
+          );
+        }
+      } else if (track.isPlaylistItem) {
+        final playlistData = await PlatformBridge.getPlaylistWithExtension(extensionId, track.id);
+        if (playlistData != null && mounted) {
+          final trackList = playlistData['tracks'] as List<dynamic>? ?? [];
+          final tracks = trackList.map((t) => _parseExtensionTrack(t as Map<String, dynamic>, extensionId)).toList();
+          ref.read(trackProvider.notifier).setTracksFromCollection(
+            tracks: tracks,
+            playlistName: playlistData['name'] as String? ?? track.name,
+            coverUrl: playlistData['cover_url'] as String? ?? track.coverUrl,
+          );
+        }
+      }
+    } catch (e) {
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(content: Text('Failed to load: $e')),
+        );
+      }
+    }
+  }
+  
+  Track _parseExtensionTrack(Map<String, dynamic> data, String source) {
+    int durationMs = 0;
+    final durationValue = data['duration_ms'];
+    if (durationValue is int) {
+      durationMs = durationValue;
+    } else if (durationValue is double) {
+      durationMs = durationValue.toInt();
+    }
+    
+    return Track(
+      id: (data['id'] ?? '').toString(),
+      name: (data['name'] ?? '').toString(),
+      artistName: (data['artists'] ?? '').toString(),
+      albumName: (data['album_name'] ?? '').toString(),
+      coverUrl: (data['cover_url'] ?? data['images'])?.toString(),
+      duration: (durationMs / 1000).round(),
+      releaseDate: data['release_date']?.toString(),
+      source: source,
     );
   }
 

lib/screens/main_shell.dart

@@ -2,8 +2,10 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
+import 'package:spotiflac_android/providers/store_provider.dart';
 import 'package:spotiflac_android/providers/track_provider.dart';
 import 'package:spotiflac_android/screens/home_tab.dart';
 import 'package:spotiflac_android/screens/store_tab.dart';
@@ -28,13 +30,12 @@ class _MainShellState extends ConsumerState<MainShell> {
   late PageController _pageController;
   bool _hasCheckedUpdate = false;
   StreamSubscription<String>? _shareSubscription;
-  DateTime? _lastBackPress; // For double-tap to exit
+  DateTime? _lastBackPress;
 
   @override
   void initState() {
     super.initState();
     _pageController = PageController(initialPage: _currentIndex);
-    // Check for updates after first frame
     WidgetsBinding.instance.addPostFrameCallback((_) {
       _checkForUpdates();
       _setupShareListener();
@@ -42,14 +43,12 @@ class _MainShellState extends ConsumerState<MainShell> {
   }
 
   void _setupShareListener() {
-    // Check for pending URL that was received before listener was ready
     final pendingUrl = ShareIntentService().consumePendingUrl();
     if (pendingUrl != null) {
       _log.d('Processing pending shared URL: $pendingUrl');
       _handleSharedUrl(pendingUrl);
     }
 
-    // Listen for future shared URLs with error handling
     _shareSubscription = ShareIntentService().sharedUrlStream.listen(
       (url) {
         _log.d('Received shared URL from stream: $url');
@@ -63,21 +62,16 @@ class _MainShellState extends ConsumerState<MainShell> {
   }
 
   void _handleSharedUrl(String url) {
-    // Pop any existing screens (Album, Artist, Settings sub-pages) to return to root
     Navigator.of(context).popUntil((route) => route.isFirst);
     
-    // Navigate to Home tab
     if (_currentIndex != 0) {
       _onNavTap(0);
     }
-    // Fetch metadata for shared URL
     ref.read(trackProvider.notifier).fetchFromUrl(url);
-    // Mark that user has searched (hide helper text)
     ref.read(settingsProvider.notifier).setHasSearchedBefore();
-    // Show snackbar
     if (mounted) {
       ScaffoldMessenger.of(context).showSnackBar(
-        SnackBar(content: Text('Loading shared link...')),
+        SnackBar(content: Text(context.l10n.loadingSharedLink)),
       );
     }
   }
@@ -122,6 +116,7 @@ class _MainShellState extends ConsumerState<MainShell> {
   void _onPageChanged(int index) {
     if (_currentIndex != index) {
       setState(() => _currentIndex = index);
+      FocusManager.instance.primaryFocus?.unfocus();
     }
   }
 
@@ -129,40 +124,41 @@ class _MainShellState extends ConsumerState<MainShell> {
   void _handleBackPress() {
     final trackState = ref.read(trackProvider);
     
-    // Check if keyboard is visible - if so, just dismiss keyboard, don't clear search
     final isKeyboardVisible = MediaQuery.of(context).viewInsets.bottom > 0;
     if (isKeyboardVisible) {
-      FocusScope.of(context).unfocus();
+      FocusManager.instance.primaryFocus?.unfocus();
+      return;
+    }
+    
+    if (_currentIndex == 0 && trackState.isShowingRecentAccess) {
+      ref.read(trackProvider.notifier).setShowingRecentAccess(false);
+      FocusManager.instance.primaryFocus?.unfocus();
       return;
     }
     
-    // If on Home tab and has text in search bar or has content (but not loading), clear it
     if (_currentIndex == 0 && !trackState.isLoading && (trackState.hasSearchText || trackState.hasContent)) {
       ref.read(trackProvider.notifier).clear();
       return;
     }
     
-    // If not on Home tab, go to Home tab first
     if (_currentIndex != 0) {
       _onNavTap(0);
       return;
     }
     
-    // If loading, ignore back press
     if (trackState.isLoading) {
       return;
     }
     
-    // Double-tap to exit
     final now = DateTime.now();
     if (_lastBackPress != null && now.difference(_lastBackPress!) < const Duration(seconds: 2)) {
       SystemNavigator.pop();
     } else {
       _lastBackPress = now;
       ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(
-          content: Text('Press back again to exit'),
-          duration: Duration(seconds: 2),
+        SnackBar(
+          content: Text(context.l10n.pressBackAgainToExit),
+          duration: const Duration(seconds: 2),
           behavior: SnackBarBehavior.floating,
         ),
       );
@@ -174,8 +170,8 @@ class _MainShellState extends ConsumerState<MainShell> {
     final queueState = ref.watch(downloadQueueProvider.select((s) => s.queuedCount));
     final trackState = ref.watch(trackProvider);
     final showStore = ref.watch(settingsProvider.select((s) => s.showExtensionStore));
+    final storeUpdatesCount = ref.watch(storeProvider.select((s) => s.updatesAvailableCount));
     
-    // Check if keyboard is visible (bottom inset > 0 means keyboard is showing)
     final isKeyboardVisible = MediaQuery.of(context).viewInsets.bottom > 0;
     
     // Determine if we can pop (for predictive back animation)
@@ -185,21 +181,26 @@ class _MainShellState extends ConsumerState<MainShell> {
                    !trackState.hasSearchText && 
                    !trackState.hasContent && 
                    !trackState.isLoading &&
+                   !trackState.isShowingRecentAccess &&
                    !isKeyboardVisible;
 
-    // Build tabs and destinations based on settings
     final tabs = <Widget>[
       const HomeTab(),
-      const QueueTab(),
+      QueueTab(
+        parentPageController: _pageController,
+        parentPageIndex: 1,
+        nextPageIndex: showStore ? 2 : 3,
+      ),
       if (showStore) const StoreTab(),
       const SettingsTab(),
     ];
 
+    final l10n = context.l10n;
     final destinations = <NavigationDestination>[
-      const NavigationDestination(
-        icon: Icon(Icons.home_outlined),
-        selectedIcon: Icon(Icons.home),
-        label: 'Home',
+      NavigationDestination(
+        icon: const Icon(Icons.home_outlined),
+        selectedIcon: const Icon(Icons.home),
+        label: l10n.navHome,
       ),
       NavigationDestination(
         icon: Badge(
@@ -212,22 +213,29 @@ class _MainShellState extends ConsumerState<MainShell> {
           label: Text('$queueState'),
           child: const Icon(Icons.history),
         ),
-        label: 'History',
+        label: l10n.navHistory,
       ),
       if (showStore)
-        const NavigationDestination(
-          icon: Icon(Icons.store_outlined),
-          selectedIcon: Icon(Icons.store),
-          label: 'Store',
+        NavigationDestination(
+          icon: Badge(
+            isLabelVisible: storeUpdatesCount > 0,
+            label: Text('$storeUpdatesCount'),
+            child: const Icon(Icons.store_outlined),
+          ),
+          selectedIcon: Badge(
+            isLabelVisible: storeUpdatesCount > 0,
+            label: Text('$storeUpdatesCount'),
+            child: const Icon(Icons.store),
+          ),
+          label: l10n.navStore,
         ),
-      const NavigationDestination(
-        icon: Icon(Icons.settings_outlined),
-        selectedIcon: Icon(Icons.settings),
-        label: 'Settings',
+      NavigationDestination(
+        icon: const Icon(Icons.settings_outlined),
+        selectedIcon: const Icon(Icons.settings),
+        label: l10n.navSettings,
       ),
     ];
 
-    // Clamp current index if tabs changed
     final maxIndex = tabs.length - 1;
     if (_currentIndex > maxIndex) {
       WidgetsBinding.instance.addPostFrameCallback((_) {
@@ -247,14 +255,13 @@ class _MainShellState extends ConsumerState<MainShell> {
           return;
         }
         
-        // Handle back press manually when canPop is false
         _handleBackPress();
       },
       child: Scaffold(
         body: PageView(
           controller: _pageController,
           onPageChanged: _onPageChanged,
-          physics: const BouncingScrollPhysics(),
+          physics: const ClampingScrollPhysics(),
           children: tabs,
         ),
         bottomNavigationBar: NavigationBar(

lib/screens/playlist_screen.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:cached_network_image/cached_network_image.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/models/track.dart';
 import 'package:spotiflac_android/models/download_item.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
@@ -114,7 +115,7 @@ class PlaylistScreen extends ConsumerWidget {
                     children: [
                       Icon(Icons.playlist_play, size: 14, color: colorScheme.onTertiaryContainer),
                       const SizedBox(width: 4),
-                      Text('${tracks.length} tracks', style: TextStyle(color: colorScheme.onTertiaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
+                      Text(context.l10n.tracksCount(tracks.length), style: TextStyle(color: colorScheme.onTertiaryContainer, fontWeight: FontWeight.w600, fontSize: 12)),
                     ],
                   ),
                 ),
@@ -122,7 +123,7 @@ class PlaylistScreen extends ConsumerWidget {
                 FilledButton.icon(
                   onPressed: () => _downloadAll(context, ref),
                   icon: const Icon(Icons.download),
-                  label: Text('Download All (${tracks.length})'),
+                  label: Text(context.l10n.downloadAllCount(tracks.length)),
                   style: FilledButton.styleFrom(minimumSize: const Size.fromHeight(52), shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16))),
                 ),
               ],
@@ -141,7 +142,7 @@ class PlaylistScreen extends ConsumerWidget {
           children: [
             Icon(Icons.queue_music, size: 20, color: colorScheme.primary),
             const SizedBox(width: 8),
-            Text('Tracks', style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
+            Text(context.l10n.tracksHeader, style: Theme.of(context).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w600, color: colorScheme.onSurface)),
           ],
         ),
       ),
@@ -176,12 +177,12 @@ class PlaylistScreen extends ConsumerWidget {
         coverUrl: track.coverUrl,
         onSelect: (quality, service) {
           ref.read(downloadQueueProvider.notifier).addToQueue(track, service, qualityOverride: quality);
-          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added "${track.name}" to queue')));
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
         },
       );
     } else {
       ref.read(downloadQueueProvider.notifier).addToQueue(track, settings.defaultService);
-      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added "${track.name}" to queue')));
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedToQueue(track.name))));
     }
   }
 
@@ -195,12 +196,12 @@ class PlaylistScreen extends ConsumerWidget {
         artistName: playlistName,
         onSelect: (quality, service) {
           ref.read(downloadQueueProvider.notifier).addMultipleToQueue(tracks, service, qualityOverride: quality);
-          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added ${tracks.length} tracks to queue')));
+          ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedTracksToQueue(tracks.length))));
         },
       );
     } else {
       ref.read(downloadQueueProvider.notifier).addMultipleToQueue(tracks, settings.defaultService);
-      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('Added ${tracks.length} tracks to queue')));
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAddedTracksToQueue(tracks.length))));
     }
   }
 }
@@ -216,12 +217,10 @@ class _PlaylistTrackItem extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Only watch the specific item for this track
     final queueItem = ref.watch(downloadQueueProvider.select((state) {
       return state.items.where((item) => item.track.id == track.id).firstOrNull;
     }));
     
-    // Check if track is in history (already downloaded before)
     final isInHistory = ref.watch(downloadHistoryProvider.select((state) {
       return state.isDownloaded(track.id);
     }));
@@ -232,7 +231,6 @@ class _PlaylistTrackItem extends ConsumerWidget {
     final isCompleted = queueItem?.status == DownloadStatus.completed;
     final progress = queueItem?.progress ?? 0.0;
     
-    // Show as downloaded if in queue completed OR in history
     final showAsDownloaded = isCompleted || (!isQueued && isInHistory);
 
     return Padding(
@@ -264,7 +262,7 @@ class _PlaylistTrackItem extends ConsumerWidget {
         final fileExists = await File(historyItem.filePath).exists();
         if (fileExists) {
           if (context.mounted) {
-            ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('"${track.name}" already downloaded')));
+            ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(context.l10n.snackbarAlreadyDownloaded(track.name))));
           }
           return;
         } else {

lib/screens/queue_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:cached_network_image/cached_network_image.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/models/download_item.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 
@@ -14,19 +15,19 @@ class QueueScreen extends ConsumerWidget {
 
     return Scaffold(
       appBar: AppBar(
-        title: const Text('Download Queue'),
+        title: Text(context.l10n.queueTitle),
         actions: [
           if (queueState.items.isNotEmpty)
             IconButton(
               icon: const Icon(Icons.delete_sweep),
               onPressed: () => ref.read(downloadQueueProvider.notifier).clearCompleted(),
-              tooltip: 'Clear completed',
+              tooltip: context.l10n.queueClearCompleted,
             ),
           if (queueState.items.isNotEmpty)
             IconButton(
               icon: const Icon(Icons.clear_all),
               onPressed: () => _showClearAllDialog(context, ref),
-              tooltip: 'Clear all',
+              tooltip: context.l10n.queueClearAll,
             ),
         ],
       ),
@@ -51,14 +52,14 @@ class QueueScreen extends ConsumerWidget {
           ),
           const SizedBox(height: 16),
           Text(
-            'No downloads in queue',
+            context.l10n.queueEmpty,
             style: Theme.of(context).textTheme.bodyLarge?.copyWith(
               color: colorScheme.onSurfaceVariant,
             ),
           ),
           const SizedBox(height: 8),
           Text(
-            'Add tracks from the home screen',
+            context.l10n.queueEmptySubtitle,
             style: Theme.of(context).textTheme.bodyMedium?.copyWith(
               color: colorScheme.onSurfaceVariant.withValues(alpha: 0.7),
             ),
@@ -177,7 +178,7 @@ class QueueScreen extends ConsumerWidget {
           children: [
             Icon(Icons.error, color: colorScheme.error),
             const SizedBox(width: 8),
-            const Text('Download Failed'),
+            Text(context.l10n.queueDownloadFailed),
           ],
         ),
         content: SingleChildScrollView(
@@ -185,10 +186,10 @@ class QueueScreen extends ConsumerWidget {
             crossAxisAlignment: CrossAxisAlignment.start,
             mainAxisSize: MainAxisSize.min,
             children: [
-              Text('Track: ${item.track.name}', style: const TextStyle(fontWeight: FontWeight.bold)),
-              Text('Artist: ${item.track.artistName}'),
+              Text('${context.l10n.queueTrackLabel} ${item.track.name}', style: const TextStyle(fontWeight: FontWeight.bold)),
+              Text('${context.l10n.queueArtistLabel} ${item.track.artistName}'),
               const SizedBox(height: 16),
-              const Text('Error:', style: TextStyle(fontWeight: FontWeight.bold)),
+              Text(context.l10n.queueErrorLabel, style: const TextStyle(fontWeight: FontWeight.bold)),
               const SizedBox(height: 4),
               Container(
                 padding: const EdgeInsets.all(8),
@@ -197,7 +198,7 @@ class QueueScreen extends ConsumerWidget {
                   borderRadius: BorderRadius.circular(8),
                 ),
                 child: Text(
-                  item.error ?? 'Unknown error',
+                  item.error ?? context.l10n.queueUnknownError,
                   style: TextStyle(
                     fontFamily: 'monospace', 
                     fontSize: 12,
@@ -211,7 +212,7 @@ class QueueScreen extends ConsumerWidget {
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Close'),
+            child: Text(context.l10n.dialogClose),
           ),
         ],
       ),
@@ -223,19 +224,19 @@ class QueueScreen extends ConsumerWidget {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Clear All'),
-        content: const Text('Are you sure you want to clear all downloads?'),
+        title: Text(context.l10n.queueClearAll),
+        content: Text(context.l10n.queueClearAllMessage),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           TextButton(
             onPressed: () {
               ref.read(downloadQueueProvider.notifier).clearAll();
               Navigator.pop(context);
             },
-            child: Text('Clear', style: TextStyle(color: colorScheme.error)),
+            child: Text(context.l10n.dialogClear, style: TextStyle(color: colorScheme.error)),
           ),
         ],
       ),

lib/screens/settings/about_page.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:spotiflac_android/constants/app_info.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
 
 class AboutPage extends StatelessWidget {
@@ -13,47 +14,43 @@ class AboutPage extends StatelessWidget {
     final topPadding = MediaQuery.of(context).padding.top;
 
     return PopScope(
-      canPop: true,
+      canPop: true, // Always allow back gesture
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
-            // Collapsing App Bar with back button
             SliverAppBar(
-              expandedHeight: 120 + topPadding,
-              collapsedHeight: kToolbarHeight,
-              floating: false,
-              pinned: true,
-              backgroundColor: colorScheme.surface,
-              surfaceTintColor: Colors.transparent,
-              leading: IconButton(
-                icon: const Icon(Icons.arrow_back),
-                onPressed: () => Navigator.pop(context),
-              ),
-              flexibleSpace: LayoutBuilder(
-                builder: (context, constraints) {
-                  final maxHeight = 120 + topPadding;
-                  final minHeight = kToolbarHeight + topPadding;
-                  final expandRatio = ((constraints.maxHeight - minHeight) / (maxHeight - minHeight)).clamp(0.0, 1.0);
-                  // When collapsed (expandRatio=0): left=56 to avoid back button
-                  // When expanded (expandRatio=1): left=24 for normal padding
-                  final leftPadding = 56 - (32 * expandRatio); // 56 -> 24
-                  return FlexibleSpaceBar(
-                    expandedTitleScale: 1.0,
-                    titlePadding: EdgeInsets.only(left: leftPadding, bottom: 16),
-                    title: Text(
-                      'About',
-                      style: TextStyle(
-                        fontSize: 20 + (8 * expandRatio), // 20 -> 28
-                        fontWeight: FontWeight.bold,
-                        color: colorScheme.onSurface,
-                      ),
-                    ),
-                  );
-                },
-              ),
+            expandedHeight: 120 + topPadding,
+            collapsedHeight: kToolbarHeight,
+            floating: false,
+            pinned: true,
+            backgroundColor: colorScheme.surface,
+            surfaceTintColor: Colors.transparent,
+            leading: IconButton(
+              icon: const Icon(Icons.arrow_back),
+              onPressed: () => Navigator.pop(context),
             ),
+            flexibleSpace: LayoutBuilder(
+              builder: (context, constraints) {
+                final maxHeight = 120 + topPadding;
+                final minHeight = kToolbarHeight + topPadding;
+                final expandRatio = ((constraints.maxHeight - minHeight) / (maxHeight - minHeight)).clamp(0.0, 1.0);
+                final leftPadding = 56 - (32 * expandRatio);
+                return FlexibleSpaceBar(
+                  expandedTitleScale: 1.0,
+                  titlePadding: EdgeInsets.only(left: leftPadding, bottom: 16),
+                  title: Text(
+                    context.l10n.aboutTitle,
+                    style: TextStyle(
+                      fontSize: 20 + (8 * expandRatio), // 20 -> 28
+                      fontWeight: FontWeight.bold,
+                      color: colorScheme.onSurface,
+                    ),
+                  ),
+                );
+              },
+            ),
+          ),
 
-          // App header card with logo and description
           SliverToBoxAdapter(
             child: Padding(
               padding: const EdgeInsets.fromLTRB(16, 16, 16, 8),
@@ -61,28 +58,27 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // Contributors section
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Contributors'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.aboutContributors),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
               children: [
                 _ContributorItem(
                   name: AppInfo.mobileAuthor,
-                  description: 'Mobile version developer',
+                  description: context.l10n.aboutMobileDeveloper,
                   githubUsername: AppInfo.mobileAuthor,
                   showDivider: true,
                 ),
                 _ContributorItem(
                   name: AppInfo.originalAuthor,
-                  description: 'Creator of the original SpotiFLAC',
+                  description: context.l10n.aboutOriginalCreator,
                   githubUsername: AppInfo.originalAuthor,
                   showDivider: true,
                 ),
                 _ContributorItem(
                   name: 'Amonoman',
-                  description: 'The talented artist who created our beautiful app logo!',
+                  description: context.l10n.aboutLogoArtist,
                   githubUsername: 'Amonoman',
                   showDivider: false,
                 ),
@@ -90,36 +86,35 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // Special Thanks section
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Special Thanks'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.aboutSpecialThanks),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
               children: [
                 _ContributorItem(
-                  name: 'uimaxbai',
-                  description: 'The creator of QQDL & HiFi API. Without this API, Tidal downloads wouldn\'t exist!',
-                  githubUsername: 'uimaxbai',
+                  name: 'binimum',
+                  description: context.l10n.aboutBinimumDesc,
+                  githubUsername: 'binimum',
                   showDivider: true,
                 ),
                 _ContributorItem(
                   name: 'sachinsenal0x64',
-                  description: 'The original HiFi project creator. The foundation of Tidal integration!',
+                  description: context.l10n.aboutSachinsenalDesc,
                   githubUsername: 'sachinsenal0x64',
                   showDivider: true,
                 ),
                 _AboutSettingsItem(
                   icon: Icons.cloud_outlined,
-                  title: 'DoubleDouble',
-                  subtitle: 'Amazing API for Amazon Music downloads. Thank you for making it free!',
+                  title: context.l10n.aboutDoubleDouble,
+                  subtitle: context.l10n.aboutDoubleDoubleDesc,
                   onTap: () => _launchUrl('https://doubledouble.top'),
                   showDivider: true,
                 ),
                 _AboutSettingsItem(
                   icon: Icons.music_note_outlined,
-                  title: 'DAB Music',
-                  subtitle: 'The best Qobuz streaming API. Hi-Res downloads wouldn\'t be possible without this!',
+                  title: context.l10n.aboutDabMusic,
+                  subtitle: context.l10n.aboutDabMusicDesc,
                   onTap: () => _launchUrl('https://dabmusic.xyz'),
                   showDivider: false,
                 ),
@@ -127,38 +122,37 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // Links section
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Links'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.aboutLinks),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
               children: [
-                SettingsItem(
+                _AboutSettingsItem(
                   icon: Icons.phone_android,
-                  title: 'Mobile source code',
+                  title: context.l10n.aboutMobileSource,
                   subtitle: 'github.com/${AppInfo.githubRepo}',
                   onTap: () => _launchUrl(AppInfo.githubUrl),
                   showDivider: true,
                 ),
-                SettingsItem(
+                _AboutSettingsItem(
                   icon: Icons.computer,
-                  title: 'PC source code',
+                  title: context.l10n.aboutPCSource,
                   subtitle: 'github.com/${AppInfo.originalAuthor}/SpotiFLAC',
                   onTap: () => _launchUrl(AppInfo.originalGithubUrl),
                   showDivider: true,
                 ),
-                SettingsItem(
+                _AboutSettingsItem(
                   icon: Icons.bug_report_outlined,
-                  title: 'Report an issue',
-                  subtitle: 'Report any problems you encounter',
+                  title: context.l10n.aboutReportIssue,
+                  subtitle: context.l10n.aboutReportIssueSubtitle,
                   onTap: () => _launchUrl('${AppInfo.githubUrl}/issues/new'),
                   showDivider: true,
                 ),
-                SettingsItem(
+                _AboutSettingsItem(
                   icon: Icons.lightbulb_outline,
-                  title: 'Feature request',
-                  subtitle: 'Suggest new features for the app',
+                  title: context.l10n.aboutFeatureRequest,
+                  subtitle: context.l10n.aboutFeatureRequestSubtitle,
                   onTap: () => _launchUrl('${AppInfo.githubUrl}/issues/new'),
                   showDivider: false,
                 ),
@@ -166,17 +160,16 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // Support section
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Support'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.aboutSupport),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
               children: [
-                SettingsItem(
+                _AboutSettingsItem(
                   icon: Icons.coffee_outlined,
-                  title: 'Buy me a coffee',
-                  subtitle: 'Support development on Ko-fi',
+                  title: context.l10n.aboutBuyMeCoffee,
+                  subtitle: context.l10n.aboutBuyMeCoffeeSubtitle,
                   onTap: () => _launchUrl(AppInfo.kofiUrl),
                   showDivider: false,
                 ),
@@ -184,16 +177,15 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // App info section
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'App'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.aboutApp),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
               children: [
-                SettingsItem(
+                _AboutSettingsItem(
                   icon: Icons.info_outline,
-                  title: 'Version',
+                  title: context.l10n.aboutVersion,
                   subtitle: 'v${AppInfo.version} (build ${AppInfo.buildNumber})',
                   showDivider: false,
                 ),
@@ -201,7 +193,6 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // Copyright
           SliverToBoxAdapter(
             child: Padding(
               padding: const EdgeInsets.all(24),
@@ -216,17 +207,15 @@ class AboutPage extends StatelessWidget {
             ),
           ),
 
-          // Bottom padding
           const SliverToBoxAdapter(child: SizedBox(height: 16)),
         ],
       ),
-      ),
+    ),
     );
   }
 
   static Future<void> _launchUrl(String url) async {
     final uri = Uri.parse(url);
-    // Use inAppBrowserView for reliable URL opening with app chooser
     await launchUrl(uri, mode: LaunchMode.inAppBrowserView);
   }
 }
@@ -249,8 +238,6 @@ class _AppHeaderCard extends StatelessWidget {
       padding: const EdgeInsets.all(24),
       child: Column(
         children: [
-          // App logo
-          // App logo
           Container(
             width: 88,
             height: 88,
@@ -274,7 +261,6 @@ class _AppHeaderCard extends StatelessWidget {
             ),
           ),
           const SizedBox(height: 16),
-          // App name
           Text(
             AppInfo.appName,
             style: Theme.of(context).textTheme.headlineSmall?.copyWith(
@@ -282,7 +268,6 @@ class _AppHeaderCard extends StatelessWidget {
             ),
           ),
           const SizedBox(height: 4),
-          // Version badge
           Container(
             padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
             decoration: BoxDecoration(
@@ -298,9 +283,8 @@ class _AppHeaderCard extends StatelessWidget {
             ),
           ),
           const SizedBox(height: 16),
-          // Description
           Text(
-            'Download Spotify tracks in lossless quality from Tidal, Qobuz, and Amazon Music.',
+            context.l10n.aboutAppDescription,
             textAlign: TextAlign.center,
             style: Theme.of(context).textTheme.bodyMedium?.copyWith(
               color: colorScheme.onSurfaceVariant,
@@ -340,7 +324,6 @@ class _ContributorItem extends StatelessWidget {
             padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
             child: Row(
               children: [
-                // GitHub Avatar
                 ClipRRect(
                   borderRadius: BorderRadius.circular(12),
                   child: CachedNetworkImage(
@@ -371,7 +354,6 @@ class _ContributorItem extends StatelessWidget {
                   ),
                 ),
                 const SizedBox(width: 16),
-                // Name and description
                 Expanded(
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
@@ -390,7 +372,6 @@ class _ContributorItem extends StatelessWidget {
                     ],
                   ),
                 ),
-                // GitHub icon
                 Icon(Icons.chevron_right, color: colorScheme.onSurfaceVariant),
               ],
             ),
@@ -445,7 +426,6 @@ class _AboutSettingsItem extends StatelessWidget {
             padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
             child: Row(
               children: [
-                // Icon with 40x40 size to match avatar
                 SizedBox(
                   width: 40,
                   height: 40,

lib/screens/settings/appearance_settings_page.dart

@@ -1,5 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
+import 'package:spotiflac_android/l10n/supported_locales.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/providers/theme_provider.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
@@ -15,29 +17,27 @@ class AppearanceSettingsPage extends ConsumerWidget {
     final topPadding = MediaQuery.of(context).padding.top;
 
     return PopScope(
-      canPop: true,
+      canPop: true, // Always allow back gesture
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
-            // Collapsing App Bar with back button
             SliverAppBar(
-              expandedHeight: 120 + topPadding,
-              collapsedHeight: kToolbarHeight,
-              floating: false,
-              pinned: true,
-              backgroundColor: colorScheme.surface,
-              surfaceTintColor: Colors.transparent,
-              leading: IconButton(
-                icon: const Icon(Icons.arrow_back),
-                onPressed: () => Navigator.pop(context),
-              ),
-              flexibleSpace: _AppBarTitle(
-                title: 'Appearance',
-                topPadding: topPadding,
-              ),
+            expandedHeight: 120 + topPadding,
+            collapsedHeight: kToolbarHeight,
+            floating: false,
+            pinned: true,
+            backgroundColor: colorScheme.surface,
+            surfaceTintColor: Colors.transparent,
+            leading: IconButton(
+              icon: const Icon(Icons.arrow_back),
+              onPressed: () => Navigator.pop(context),
             ),
+            flexibleSpace: _AppBarTitle(
+              title: context.l10n.appearanceTitle,
+              topPadding: topPadding,
+            ),
+          ),
 
-            // Preview Section
             SliverToBoxAdapter(
               child: Padding(
                 padding: const EdgeInsets.symmetric(
@@ -48,9 +48,8 @@ class AppearanceSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Color section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Color'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionColor),
             ),
 
             SliverToBoxAdapter(
@@ -58,8 +57,8 @@ class AppearanceSettingsPage extends ConsumerWidget {
                 children: [
                   SettingsSwitchItem(
                     icon: Icons.wallpaper,
-                    title: 'Dynamic Color',
-                    subtitle: 'Use colors from your wallpaper',
+                    title: context.l10n.appearanceDynamicColor,
+                    subtitle: context.l10n.appearanceDynamicColorSubtitle,
                     value: themeSettings.useDynamicColor,
                     onChanged: (value) => ref
                         .read(themeProvider.notifier)
@@ -78,12 +77,11 @@ class AppearanceSettingsPage extends ConsumerWidget {
                     onColorSelected: (color) =>
                         ref.read(themeProvider.notifier).setSeedColor(color),
                   ),
-                ),
               ),
+            ),
 
-            // Theme section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Theme'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionTheme),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -96,8 +94,8 @@ class AppearanceSettingsPage extends ConsumerWidget {
                   if (Theme.of(context).brightness == Brightness.dark)
                     SettingsSwitchItem(
                       icon: Icons.brightness_2,
-                      title: 'AMOLED Dark',
-                      subtitle: 'Pure black background',
+                      title: context.l10n.appearanceAmoledDark,
+                      subtitle: context.l10n.appearanceAmoledDarkSubtitle,
                       value: themeSettings.useAmoled,
                       onChanged: (value) =>
                           ref.read(themeProvider.notifier).setUseAmoled(value),
@@ -107,9 +105,24 @@ class AppearanceSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Layout section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Layout'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionLanguage),
+            ),
+            SliverToBoxAdapter(
+              child: SettingsGroup(
+                children: [
+                  _LanguageSelector(
+                    currentLocale: settings.locale,
+                    onChanged: (locale) => ref
+                        .read(settingsProvider.notifier)
+                        .setLocale(locale),
+                  ),
+                ],
+              ),
+            ),
+
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionLayout),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -124,7 +137,6 @@ class AppearanceSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Fill remaining for scroll
             const SliverFillRemaining(
               hasScrollBody: false,
               child: SizedBox(height: 32),
@@ -155,7 +167,6 @@ class _ThemePreviewCard extends StatelessWidget {
         clipBehavior: Clip.antiAlias,
         child: Stack(
           children: [
-            // Decorative background blobs
             Positioned(
               top: -50,
               right: -50,
@@ -181,7 +192,6 @@ class _ThemePreviewCard extends StatelessWidget {
               ),
             ),
 
-            // Foreground "fake UI"
             Center(
               child: Container(
                 width: 260,
@@ -200,7 +210,6 @@ class _ThemePreviewCard extends StatelessWidget {
                 ),
                 child: Row(
                   children: [
-                    // Fake Album Art
                     Container(
                       width: 108,
                       height: 108,
@@ -216,7 +225,6 @@ class _ThemePreviewCard extends StatelessWidget {
                     ),
                     const SizedBox(width: 16),
 
-                    // Fake Text Info
                     Expanded(
                       child: Column(
                         crossAxisAlignment: CrossAxisAlignment.start,
@@ -269,7 +277,6 @@ class _ThemePreviewCard extends StatelessWidget {
               ),
             ),
 
-            // Label badge
             Positioned(
               bottom: 12,
               right: 12,
@@ -283,7 +290,7 @@ class _ThemePreviewCard extends StatelessWidget {
                   borderRadius: BorderRadius.circular(20),
                 ),
                 child: Text(
-                  isDark ? 'Dark Mode' : 'Light Mode',
+                  isDark ? context.l10n.appearanceThemeDark : context.l10n.appearanceThemeLight,
                   style: const TextStyle(
                     color: Colors.white,
                     fontSize: 10,
@@ -451,21 +458,21 @@ class _ThemeModeSelector extends StatelessWidget {
         children: [
           _ThemeModeChip(
             icon: Icons.brightness_auto,
-            label: 'System',
+            label: context.l10n.appearanceThemeSystem,
             isSelected: currentMode == ThemeMode.system,
             onTap: () => onChanged(ThemeMode.system),
           ),
           const SizedBox(width: 8),
           _ThemeModeChip(
             icon: Icons.light_mode,
-            label: 'Light',
+            label: context.l10n.appearanceThemeLight,
             isSelected: currentMode == ThemeMode.light,
             onTap: () => onChanged(ThemeMode.light),
           ),
           const SizedBox(width: 8),
           _ThemeModeChip(
             icon: Icons.dark_mode,
-            label: 'Dark',
+            label: context.l10n.appearanceThemeDark,
             isSelected: currentMode == ThemeMode.dark,
             onTap: () => onChanged(ThemeMode.dark),
           ),
@@ -491,10 +498,7 @@ class _ThemeModeChip extends StatelessWidget {
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
     final isDark = Theme.of(context).brightness == Brightness.dark;
-
-    // Unselected chips need contrast with card background
-    // Card uses: dark = white 8% overlay, light = surfaceContainerHighest
-    // So chips use: dark = white 5% overlay (darker), light = black 5% overlay (darker than card)
+    
     final unselectedColor = isDark
         ? Color.alphaBlend(
             Colors.white.withValues(alpha: 0.05),
@@ -575,7 +579,7 @@ class _HistoryViewSelector extends StatelessWidget {
           Padding(
             padding: const EdgeInsets.only(left: 8, bottom: 8),
             child: Text(
-              'History View',
+              context.l10n.appearanceHistoryView,
               style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                 color: colorScheme.onSurfaceVariant,
               ),
@@ -585,14 +589,14 @@ class _HistoryViewSelector extends StatelessWidget {
             children: [
               _ViewModeChip(
                 icon: Icons.view_list,
-                label: 'List',
+                label: context.l10n.appearanceHistoryViewList,
                 isSelected: currentMode == 'list',
                 onTap: () => onChanged('list'),
               ),
               const SizedBox(width: 8),
               _ViewModeChip(
                 icon: Icons.grid_view,
-                label: 'Grid',
+                label: context.l10n.appearanceHistoryViewGrid,
                 isSelected: currentMode == 'grid',
                 onTap: () => onChanged('grid'),
               ),
@@ -621,7 +625,6 @@ class _ViewModeChip extends StatelessWidget {
     final colorScheme = Theme.of(context).colorScheme;
     final isDark = Theme.of(context).brightness == Brightness.dark;
 
-    // Unselected chips need contrast with card background
     final unselectedColor = isDark
         ? Color.alphaBlend(
             Colors.white.withValues(alpha: 0.05),
@@ -682,3 +685,128 @@ class _ViewModeChip extends StatelessWidget {
     );
   }
 }
+
+class _LanguageSelector extends StatelessWidget {
+  final String currentLocale;
+  final ValueChanged<String> onChanged;
+  const _LanguageSelector({
+    required this.currentLocale,
+    required this.onChanged,
+  });
+
+  static const _allLanguages = [
+    ('system', 'System Default', Icons.phone_android),
+    ('en', 'English', Icons.language),
+    ('id', 'Bahasa Indonesia', Icons.language),
+    ('de', 'Deutsch', Icons.language),
+    ('es', 'Español', Icons.language),
+    ('fr', 'Français', Icons.language),
+    ('hi', 'हिन्दी', Icons.language),
+    ('ja', '日本語', Icons.language),
+    ('ko', '한국어', Icons.language),
+    ('nl', 'Nederlands', Icons.language),
+    ('pt', 'Português', Icons.language),
+    ('ru', 'Русский', Icons.language),
+    ('zh', '简体中文', Icons.language),
+    ('zh_TW', '繁體中文', Icons.language),
+  ];
+
+  /// Get only languages that meet the translation threshold.
+  /// Uses filteredLocaleCodes from supported_locales.dart (generated file).
+  List<(String, String, IconData)> get _languages {
+    return _allLanguages.where((lang) {
+      if (lang.$1 == 'system') return true;
+      return filteredLocaleCodes.contains(lang.$1);
+    }).toList();
+  }
+
+  String _getLanguageName(String code) {
+    for (final lang in _allLanguages) {
+      if (lang.$1 == code) return lang.$2;
+    }
+    return code;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    return ListTile(
+      leading: Icon(
+        Icons.language,
+        color: colorScheme.onSurfaceVariant,
+      ),
+      title: Text(context.l10n.appearanceLanguage),
+      subtitle: Text(_getLanguageName(currentLocale)),
+      trailing: Icon(
+        Icons.chevron_right,
+        color: colorScheme.onSurfaceVariant,
+      ),
+      onTap: () => _showLanguagePicker(context),
+    );
+  }
+
+  void _showLanguagePicker(BuildContext context) {
+    final colorScheme = Theme.of(context).colorScheme;
+    showModalBottomSheet(
+      context: context,
+      backgroundColor: colorScheme.surface,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(20)),
+      ),
+      builder: (context) => SafeArea(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Padding(
+              padding: const EdgeInsets.all(16),
+              child: Text(
+                context.l10n.appearanceLanguage,
+                style: Theme.of(context).textTheme.titleMedium?.copyWith(
+                  fontWeight: FontWeight.bold,
+                ),
+              ),
+            ),
+            const Divider(height: 1),
+            Flexible(
+              child: ListView.builder(
+                shrinkWrap: true,
+                itemCount: _languages.length,
+                itemBuilder: (context, index) {
+                  final lang = _languages[index];
+                  final isSelected = currentLocale == lang.$1;
+                  return ListTile(
+                    leading: Icon(
+                      lang.$3,
+                      color: isSelected 
+                          ? colorScheme.primary 
+                          : colorScheme.onSurfaceVariant,
+                    ),
+                    title: Text(
+                      lang.$2,
+                      style: TextStyle(
+                        color: isSelected 
+                            ? colorScheme.primary 
+                            : colorScheme.onSurface,
+                        fontWeight: isSelected 
+                            ? FontWeight.w600 
+                            : FontWeight.normal,
+                      ),
+                    ),
+                    trailing: isSelected 
+                        ? Icon(Icons.check, color: colorScheme.primary)
+                        : null,
+                    onTap: () {
+                      onChanged(lang.$1);
+                      Navigator.pop(context);
+                    },
+                  );
+                },
+              ),
+            ),
+            const SizedBox(height: 8),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/screens/settings/download_settings_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
@@ -10,7 +11,6 @@ import 'package:spotiflac_android/widgets/settings_group.dart';
 class DownloadSettingsPage extends ConsumerWidget {
   const DownloadSettingsPage({super.key});
   
-  // Built-in services that support quality options
   static const _builtInServices = ['tidal', 'qobuz', 'amazon'];
 
   @override
@@ -19,57 +19,54 @@ class DownloadSettingsPage extends ConsumerWidget {
     final colorScheme = Theme.of(context).colorScheme;
     final topPadding = MediaQuery.of(context).padding.top;
     
-    // Check if current service is built-in (supports quality options)
     final isBuiltInService = _builtInServices.contains(settings.defaultService);
 
     return PopScope(
-      canPop: true,
+      canPop: true, // Always allow back gesture
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
-            // Collapsing App Bar with back button
             SliverAppBar(
-              expandedHeight: 120 + topPadding,
-              collapsedHeight: kToolbarHeight,
-              floating: false,
-              pinned: true,
-              backgroundColor: colorScheme.surface,
-              surfaceTintColor: Colors.transparent,
-              leading: IconButton(
-                icon: const Icon(Icons.arrow_back),
-                onPressed: () => Navigator.pop(context),
-              ),
-              flexibleSpace: LayoutBuilder(
-                builder: (context, constraints) {
-                  final maxHeight = 120 + topPadding;
-                  final minHeight = kToolbarHeight + topPadding;
-                  final expandRatio =
-                      ((constraints.maxHeight - minHeight) /
-                              (maxHeight - minHeight))
-                          .clamp(0.0, 1.0);
-                  final leftPadding = 56 - (32 * expandRatio); // 56 -> 24
-                  return FlexibleSpaceBar(
-                    expandedTitleScale: 1.0,
-                    titlePadding: EdgeInsets.only(
-                      left: leftPadding,
-                      bottom: 16,
-                    ),
-                    title: Text(
-                      'Download',
-                      style: TextStyle(
-                        fontSize: 20 + (8 * expandRatio), // 20 -> 28
-                        fontWeight: FontWeight.bold,
-                        color: colorScheme.onSurface,
-                      ),
-                    ),
-                  );
-                },
-              ),
+            expandedHeight: 120 + topPadding,
+            collapsedHeight: kToolbarHeight,
+            floating: false,
+            pinned: true,
+            backgroundColor: colorScheme.surface,
+            surfaceTintColor: Colors.transparent,
+            leading: IconButton(
+              icon: const Icon(Icons.arrow_back),
+              onPressed: () => Navigator.pop(context),
             ),
+            flexibleSpace: LayoutBuilder(
+              builder: (context, constraints) {
+                final maxHeight = 120 + topPadding;
+                final minHeight = kToolbarHeight + topPadding;
+                final expandRatio =
+                    ((constraints.maxHeight - minHeight) /
+                            (maxHeight - minHeight))
+                        .clamp(0.0, 1.0);
+                final leftPadding = 56 - (32 * expandRatio); // 56 -> 24
+                return FlexibleSpaceBar(
+                  expandedTitleScale: 1.0,
+                  titlePadding: EdgeInsets.only(
+                    left: leftPadding,
+                    bottom: 16,
+                  ),
+                  title: Text(
+                    context.l10n.downloadTitle,
+                    style: TextStyle(
+                      fontSize: 20 + (8 * expandRatio), // 20 -> 28
+                      fontWeight: FontWeight.bold,
+                      color: colorScheme.onSurface,
+                    ),
+                  ),
+                );
+              },
+            ),
+          ),
 
-            // Service section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Service'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionService),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -84,21 +81,19 @@ class DownloadSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Quality section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Audio Quality'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionAudioQuality),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
                   SettingsSwitchItem(
                     icon: Icons.tune,
-                    title: 'Ask Before Download',
+                    title: context.l10n.downloadAskBeforeDownload,
                     subtitle: isBuiltInService 
-                        ? 'Choose quality for each download'
+                        ? context.l10n.downloadAskQualitySubtitle
                         : 'Select a built-in service to enable',
                     value: settings.askQualityBeforeDownload,
-                    // Not selected visually if extension is active
                     enabled: isBuiltInService,
                     onChanged: (value) => ref
                         .read(settingsProvider.notifier)
@@ -106,24 +101,24 @@ class DownloadSettingsPage extends ConsumerWidget {
                   ),
                   if (!settings.askQualityBeforeDownload && isBuiltInService) ...[
                     _QualityOption(
-                      title: 'FLAC Lossless',
-                      subtitle: '16-bit / 44.1kHz',
+                      title: context.l10n.qualityFlacLossless,
+                      subtitle: context.l10n.qualityFlacLosslessSubtitle,
                       isSelected: settings.audioQuality == 'LOSSLESS',
                       onTap: () => ref
                           .read(settingsProvider.notifier)
                           .setAudioQuality('LOSSLESS'),
                     ),
                     _QualityOption(
-                      title: 'Hi-Res FLAC',
-                      subtitle: '24-bit / up to 96kHz',
+                      title: context.l10n.qualityHiResFlac,
+                      subtitle: context.l10n.qualityHiResFlacSubtitle,
                       isSelected: settings.audioQuality == 'HI_RES',
                       onTap: () => ref
                           .read(settingsProvider.notifier)
                           .setAudioQuality('HI_RES'),
                     ),
                     _QualityOption(
-                      title: 'Hi-Res FLAC Max',
-                      subtitle: '24-bit / up to 192kHz',
+                      title: context.l10n.qualityHiResFlacMax,
+                      subtitle: context.l10n.qualityHiResFlacMaxSubtitle,
                       isSelected: settings.audioQuality == 'HI_RES_LOSSLESS',
                       onTap: () => ref
                           .read(settingsProvider.notifier)
@@ -158,16 +153,15 @@ class DownloadSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // File settings section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'File Settings'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionFileSettings),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
                   SettingsItem(
                     icon: Icons.text_fields,
-                    title: 'Filename Format',
+                    title: context.l10n.downloadFilenameFormat,
                     subtitle: settings.filenameFormat,
                     onTap: () => _showFormatEditor(
                       context,
@@ -177,17 +171,17 @@ class DownloadSettingsPage extends ConsumerWidget {
                   ),
                   SettingsItem(
                     icon: Icons.folder_outlined,
-                    title: 'Download Directory',
+                    title: context.l10n.downloadDirectory,
                     subtitle: settings.downloadDirectory.isEmpty
                         ? (Platform.isIOS
-                              ? 'App Documents Folder'
+                              ? context.l10n.setupAppDocumentsFolder
                               : 'Music/SpotiFLAC')
                         : settings.downloadDirectory,
                     onTap: () => _pickDirectory(context, ref),
                   ),
                   SettingsSwitchItem(
                     icon: Icons.library_music_outlined,
-                    title: 'Separate Singles Folder',
+                    title: context.l10n.downloadSeparateSinglesFolder,
                     subtitle: settings.separateSingles
                         ? 'Albums/ and Singles/ folders'
                         : 'All files in same structure',
@@ -196,10 +190,21 @@ class DownloadSettingsPage extends ConsumerWidget {
                         .read(settingsProvider.notifier)
                         .setSeparateSingles(value),
                   ),
+                  if (settings.separateSingles)
+                    SettingsItem(
+                      icon: Icons.folder_outlined,
+                      title: context.l10n.downloadAlbumFolderStructure,
+                      subtitle: _getAlbumFolderStructureLabel(settings.albumFolderStructure),
+                      onTap: () => _showAlbumFolderStructurePicker(
+                        context,
+                        ref,
+                        settings.albumFolderStructure,
+                      ),
+                    ),
                   if (!settings.separateSingles)
                     SettingsItem(
                       icon: Icons.create_new_folder_outlined,
-                      title: 'Folder Organization',
+                      title: context.l10n.downloadFolderOrganization,
                       subtitle: _getFolderOrganizationLabel(
                         settings.folderOrganization,
                       ),
@@ -221,6 +226,72 @@ class DownloadSettingsPage extends ConsumerWidget {
     );
   }
 
+  String _getAlbumFolderStructureLabel(String structure) {
+    switch (structure) {
+      case 'album_only':
+        return 'Albums/Album Name/';
+      case 'artist_year_album':
+        return 'Albums/Artist/[Year] Album/';
+      case 'year_album':
+        return 'Albums/[Year] Album/';
+      default:
+        return 'Albums/Artist/Album Name/';
+    }
+  }
+
+  void _showAlbumFolderStructurePicker(BuildContext context, WidgetRef ref, String current) {
+    showModalBottomSheet(
+      context: context,
+      builder: (context) => SafeArea(
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            ListTile(
+              leading: const Icon(Icons.folder_outlined),
+              title: Text(context.l10n.albumFolderArtistAlbum),
+              subtitle: Text(context.l10n.albumFolderArtistAlbumSubtitle),
+              trailing: current == 'artist_album' ? const Icon(Icons.check) : null,
+              onTap: () {
+                ref.read(settingsProvider.notifier).setAlbumFolderStructure('artist_album');
+                Navigator.pop(context);
+              },
+            ),
+            ListTile(
+              leading: const Icon(Icons.calendar_today_outlined),
+              title: Text(context.l10n.albumFolderArtistYearAlbum),
+              subtitle: Text(context.l10n.albumFolderArtistYearAlbumSubtitle),
+              trailing: current == 'artist_year_album' ? const Icon(Icons.check) : null,
+              onTap: () {
+                ref.read(settingsProvider.notifier).setAlbumFolderStructure('artist_year_album');
+                Navigator.pop(context);
+              },
+            ),
+            ListTile(
+              leading: const Icon(Icons.album_outlined),
+              title: Text(context.l10n.albumFolderAlbumOnly),
+              subtitle: Text(context.l10n.albumFolderAlbumOnlySubtitle),
+              trailing: current == 'album_only' ? const Icon(Icons.check) : null,
+              onTap: () {
+                ref.read(settingsProvider.notifier).setAlbumFolderStructure('album_only');
+                Navigator.pop(context);
+              },
+            ),
+            ListTile(
+              leading: const Icon(Icons.event_outlined),
+              title: Text(context.l10n.albumFolderYearAlbum),
+              subtitle: Text(context.l10n.albumFolderYearAlbumSubtitle),
+              trailing: current == 'year_album' ? const Icon(Icons.check) : null,
+              onTap: () {
+                ref.read(settingsProvider.notifier).setAlbumFolderStructure('year_album');
+                Navigator.pop(context);
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
   void _showFormatEditor(BuildContext context, WidgetRef ref, String current) {
     final controller = TextEditingController(text: current);
     final colorScheme = Theme.of(context).colorScheme;
@@ -243,11 +314,9 @@ class DownloadSettingsPage extends ConsumerWidget {
       String insertion = tag;
       if (start > 0) {
         final before = text.substring(0, start);
-        // Smart separator: if not starting a file and no hyphen separator exists, add " - "
         if (!before.trim().endsWith('-')) {
           insertion = ' - $tag';
         } else if (before.trim().endsWith('-') && !before.endsWith(' ')) {
-          // If ends with '-' but no space, add space
           insertion = ' $tag';
         }
       }
@@ -290,7 +359,7 @@ class DownloadSettingsPage extends ConsumerWidget {
                     ),
                   ),
                   Text(
-                    'Filename Format',
+                    context.l10n.filenameFormat,
                     style: Theme.of(context).textTheme.headlineSmall?.copyWith(
                       fontWeight: FontWeight.bold,
                     ),
@@ -356,7 +425,7 @@ class DownloadSettingsPage extends ConsumerWidget {
                   Row(
                     children: [
                       Expanded(
-                        child: TextButton(
+                          child: TextButton(
                           onPressed: () => Navigator.pop(context),
                           style: TextButton.styleFrom(
                             padding: const EdgeInsets.symmetric(vertical: 16),
@@ -364,7 +433,7 @@ class DownloadSettingsPage extends ConsumerWidget {
                               borderRadius: BorderRadius.circular(16),
                             ),
                           ),
-                          child: const Text('Cancel'),
+                          child: Text(context.l10n.dialogCancel),
                         ),
                       ),
                       const SizedBox(width: 12),
@@ -383,7 +452,7 @@ class DownloadSettingsPage extends ConsumerWidget {
                               borderRadius: BorderRadius.circular(16),
                             ),
                           ),
-                          child: const Text('Save Format'),
+                          child: Text(context.l10n.dialogSave),
                         ),
                       ),
                     ],
@@ -400,10 +469,8 @@ class DownloadSettingsPage extends ConsumerWidget {
 
   Future<void> _pickDirectory(BuildContext context, WidgetRef ref) async {
     if (Platform.isIOS) {
-      // iOS: Show options dialog
       _showIOSDirectoryOptions(context, ref);
     } else {
-      // Android: Use file picker
       final result = await FilePicker.platform.getDirectoryPath();
       if (result != null) {
         ref.read(settingsProvider.notifier).setDownloadDirectory(result);
@@ -427,7 +494,7 @@ class DownloadSettingsPage extends ConsumerWidget {
             Padding(
               padding: const EdgeInsets.fromLTRB(24, 24, 24, 8),
               child: Text(
-                'Download Location',
+                context.l10n.setupDownloadLocationTitle,
                 style: Theme.of(
                   context,
                 ).textTheme.titleLarge?.copyWith(fontWeight: FontWeight.bold),
@@ -436,7 +503,7 @@ class DownloadSettingsPage extends ConsumerWidget {
             Padding(
               padding: const EdgeInsets.fromLTRB(24, 0, 24, 16),
               child: Text(
-                'On iOS, downloads are saved to the app\'s Documents folder which is accessible via the Files app.',
+                context.l10n.setupDownloadLocationIosMessage,
                 style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                   color: colorScheme.onSurfaceVariant,
                 ),
@@ -444,8 +511,8 @@ class DownloadSettingsPage extends ConsumerWidget {
             ),
             ListTile(
               leading: Icon(Icons.folder_special, color: colorScheme.primary),
-              title: const Text('App Documents Folder'),
-              subtitle: const Text('Recommended - accessible via Files app'),
+              title: Text(context.l10n.setupAppDocumentsFolder),
+              subtitle: Text(context.l10n.setupAppDocumentsFolderSubtitle),
               trailing: Icon(Icons.check_circle, color: colorScheme.primary),
               onTap: () async {
                 final dir = await getApplicationDocumentsDirectory();
@@ -457,8 +524,8 @@ class DownloadSettingsPage extends ConsumerWidget {
             ),
             ListTile(
               leading: Icon(Icons.cloud, color: colorScheme.onSurfaceVariant),
-              title: const Text('Choose from Files'),
-              subtitle: const Text('Select iCloud or other location'),
+              title: Text(context.l10n.setupChooseFromFiles),
+              subtitle: Text(context.l10n.setupChooseFromFilesSubtitle),
               onTap: () async {
                 Navigator.pop(ctx);
                 // Note: iOS requires folder to have at least one file to be selectable
@@ -488,7 +555,7 @@ class DownloadSettingsPage extends ConsumerWidget {
                     const SizedBox(width: 12),
                     Expanded(
                       child: Text(
-                        'iOS limitation: Empty folders cannot be selected. Create a file inside first or use App Documents.',
+                        context.l10n.setupIosEmptyFolderWarning,
                         style: Theme.of(context).textTheme.bodySmall?.copyWith(
                           color: colorScheme.onTertiaryContainer,
                         ),
@@ -512,7 +579,7 @@ class DownloadSettingsPage extends ConsumerWidget {
       case 'album':
         return 'By Album';
       case 'artist_album':
-        return 'By Artist & Album';
+        return 'Artist/Album';
       default:
         return 'None';
     }
@@ -527,74 +594,80 @@ class DownloadSettingsPage extends ConsumerWidget {
     showModalBottomSheet(
       context: context,
       backgroundColor: colorScheme.surfaceContainerHigh,
+      isScrollControlled: true,
       shape: const RoundedRectangleBorder(
         borderRadius: BorderRadius.vertical(top: Radius.circular(28)),
       ),
+      constraints: BoxConstraints(
+        maxHeight: MediaQuery.of(context).size.height * 0.7,
+      ),
       builder: (context) => SafeArea(
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          crossAxisAlignment: CrossAxisAlignment.start,
-          children: [
-            Padding(
-              padding: const EdgeInsets.fromLTRB(24, 24, 24, 8),
-              child: Text(
-                'Folder Organization',
-                style: Theme.of(
-                  context,
-                ).textTheme.titleLarge?.copyWith(fontWeight: FontWeight.bold),
-              ),
-            ),
-            Padding(
-              padding: const EdgeInsets.fromLTRB(24, 0, 24, 16),
-              child: Text(
-                'Organize downloaded files into folders',
-                style: Theme.of(context).textTheme.bodyMedium?.copyWith(
-                  color: colorScheme.onSurfaceVariant,
+        child: SingleChildScrollView(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Padding(
+                padding: const EdgeInsets.fromLTRB(24, 24, 24, 8),
+                child: Text(
+                  'Folder Organization',
+                  style: Theme.of(
+                    context,
+                  ).textTheme.titleLarge?.copyWith(fontWeight: FontWeight.bold),
                 ),
               ),
-            ),
-            _FolderOption(
-              title: 'None',
-              subtitle: 'All files in download folder',
-              example: 'SpotiFLAC/Track.flac',
-              isSelected: current == 'none',
-              onTap: () {
-                ref.read(settingsProvider.notifier).setFolderOrganization('none');
-                Navigator.pop(context);
-              },
-            ),
-            _FolderOption(
-              title: 'By Artist',
-              subtitle: 'Separate folder for each artist',
-              example: 'SpotiFLAC/Artist Name/Track.flac',
-              isSelected: current == 'artist',
-              onTap: () {
-                ref.read(settingsProvider.notifier).setFolderOrganization('artist');
-                Navigator.pop(context);
-              },
-            ),
-            _FolderOption(
-              title: 'By Album',
-              subtitle: 'Separate folder for each album',
-              example: 'SpotiFLAC/Album Name/Track.flac',
-              isSelected: current == 'album',
-              onTap: () {
-                ref.read(settingsProvider.notifier).setFolderOrganization('album');
-                Navigator.pop(context);
-              },
-            ),
-            _FolderOption(
-              title: 'By Artist & Album',
-              subtitle: 'Nested folders for artist and album',
-              example: 'SpotiFLAC/Artist/Album/Track.flac',
-              isSelected: current == 'artist_album',
-              onTap: () {
-                ref.read(settingsProvider.notifier).setFolderOrganization('artist_album');
-                Navigator.pop(context);
-              },
-            ),
-            const SizedBox(height: 16),
-          ],
+              Padding(
+                padding: const EdgeInsets.fromLTRB(24, 0, 24, 16),
+                child: Text(
+                  context.l10n.folderOrganizationDescription,
+                  style: Theme.of(context).textTheme.bodyMedium?.copyWith(
+                    color: colorScheme.onSurfaceVariant,
+                  ),
+                ),
+              ),
+              _FolderOption(
+                title: context.l10n.folderOrganizationNone,
+                subtitle: context.l10n.folderOrganizationNoneSubtitle,
+                example: 'SpotiFLAC/Track.flac',
+                isSelected: current == 'none',
+                onTap: () {
+                  ref.read(settingsProvider.notifier).setFolderOrganization('none');
+                  Navigator.pop(context);
+                },
+              ),
+              _FolderOption(
+                title: context.l10n.folderOrganizationByArtist,
+                subtitle: context.l10n.folderOrganizationByArtistSubtitle,
+                example: 'SpotiFLAC/Artist Name/Track.flac',
+                isSelected: current == 'artist',
+                onTap: () {
+                  ref.read(settingsProvider.notifier).setFolderOrganization('artist');
+                  Navigator.pop(context);
+                },
+              ),
+              _FolderOption(
+                title: context.l10n.folderOrganizationByAlbum,
+                subtitle: context.l10n.folderOrganizationByAlbumSubtitle,
+                example: 'SpotiFLAC/Album Name/Track.flac',
+                isSelected: current == 'album',
+                onTap: () {
+                  ref.read(settingsProvider.notifier).setFolderOrganization('album');
+                  Navigator.pop(context);
+                },
+              ),
+              _FolderOption(
+                title: context.l10n.folderOrganizationByArtistAlbum,
+                subtitle: context.l10n.folderOrganizationByArtistAlbumSubtitle,
+                example: 'SpotiFLAC/Artist/Album/Track.flac',
+                isSelected: current == 'artist_album',
+                onTap: () {
+                  ref.read(settingsProvider.notifier).setFolderOrganization('artist_album');
+                  Navigator.pop(context);
+                },
+              ),
+              const SizedBox(height: 16),
+            ],
+          ),
         ),
       ),
     );
@@ -613,18 +686,15 @@ class _ServiceSelector extends ConsumerWidget {
   Widget build(BuildContext context, WidgetRef ref) {
     final extState = ref.watch(extensionProvider);
     
-    // Get enabled extension download providers
     final extensionProviders = extState.extensions
         .where((e) => e.enabled && e.hasDownloadProvider)
         .toList();
     
-    // Check if current service is an extension that's now disabled
     final isExtensionService = !['tidal', 'qobuz', 'amazon'].contains(currentService);
     final isCurrentExtensionEnabled = isExtensionService 
         ? extensionProviders.any((e) => e.id == currentService)
         : true;
     
-    // If current extension is disabled, show it as not selected
     final effectiveService = isCurrentExtensionEnabled ? currentService : '';
     
     return Padding(
@@ -655,7 +725,6 @@ class _ServiceSelector extends ConsumerWidget {
               ),
             ],
           ),
-          // Show extension download providers if any
           if (extensionProviders.isNotEmpty) ...[
             const SizedBox(height: 8),
             Row(
@@ -671,7 +740,6 @@ class _ServiceSelector extends ConsumerWidget {
                     ),
                   ),
                 ],
-                // Fill remaining space if less than 3 extensions
                 for (int i = extensionProviders.length; i < 3; i++) ...[
                   const SizedBox(width: 8),
                   const Expanded(child: SizedBox()),

lib/screens/settings/extension_detail_page.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 import 'package:spotiflac_android/providers/store_provider.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
@@ -56,11 +57,12 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
     final topPadding = MediaQuery.of(context).padding.top;
     final hasError = extension.status == 'error';
 
-    return Scaffold(
-      body: CustomScrollView(
-        slivers: [
-          // App Bar
-          SliverAppBar(
+    return PopScope(
+      canPop: true, // Always allow back gesture
+      child: Scaffold(
+        body: CustomScrollView(
+          slivers: [
+            SliverAppBar(
             expandedHeight: 120 + topPadding,
             collapsedHeight: kToolbarHeight,
             floating: false,
@@ -95,7 +97,6 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
             ),
           ),
 
-          // Extension Info Card
           SliverToBoxAdapter(
             child: Padding(
               padding: const EdgeInsets.all(16),
@@ -184,11 +185,12 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
                       ),
                     ],
                     const SizedBox(height: 16),
-                    _InfoRow(label: 'Author', value: extension.author),
-                    _InfoRow(label: 'ID', value: extension.id),
+                    _InfoRow(label: context.l10n.extensionAuthor, value: extension.author),
+                    _InfoRow(label: context.l10n.extensionId, value: extension.id),
+                    _InfoRow(label: context.l10n.extensionsVersion(extension.version), value: ''),
                     if (hasError && extension.errorMessage != null)
                       _InfoRow(
-                        label: 'Error',
+                        label: context.l10n.extensionError,
                         value: extension.errorMessage!,
                         isError: true,
                       ),
@@ -198,43 +200,50 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
             ),
           ),
 
-          // Capabilities
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Capabilities'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.extensionCapabilities),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
               children: [
                 _CapabilityItem(
                   icon: Icons.search,
-                  title: 'Metadata Provider',
+                  title: context.l10n.extensionMetadataProvider,
                   enabled: extension.hasMetadataProvider,
                 ),
                 _CapabilityItem(
                   icon: Icons.download,
-                  title: 'Download Provider',
+                  title: context.l10n.extensionDownloadProvider,
                   enabled: extension.hasDownloadProvider,
                 ),
                 _CapabilityItem(
                   icon: Icons.manage_search,
-                  title: 'Custom Search',
+                  title: context.l10n.extensionsSearchProvider,
                   enabled: extension.hasCustomSearch,
                   subtitle: extension.searchBehavior?.placeholder,
                 ),
                 _CapabilityItem(
                   icon: Icons.compare_arrows,
-                  title: 'Custom Track Matching',
+                  title: context.l10n.extensionCustomTrackMatching,
                   enabled: extension.hasCustomMatching,
                   subtitle: extension.trackMatching?.strategy != null 
-                      ? 'Strategy: ${extension.trackMatching!.strategy}'
+                      ? context.l10n.extensionStrategy(extension.trackMatching!.strategy!)
                       : null,
                 ),
                 _CapabilityItem(
                   icon: Icons.auto_fix_high,
-                  title: 'Post-Processing',
+                  title: context.l10n.extensionPostProcessing,
                   enabled: extension.hasPostProcessing,
                   subtitle: extension.postProcessing?.hooks.isNotEmpty == true
-                      ? '${extension.postProcessing!.hooks.length} hook(s) available'
+                      ? context.l10n.extensionHooksAvailable(extension.postProcessing!.hooks.length)
+                      : null,
+                ),
+                _CapabilityItem(
+                  icon: Icons.link,
+                  title: context.l10n.extensionUrlHandler,
+                  enabled: extension.hasURLHandler,
+                  subtitle: extension.urlHandler?.patterns.isNotEmpty == true
+                      ? context.l10n.extensionPatternsCount(extension.urlHandler!.patterns.length)
                       : null,
                   showDivider: false,
                 ),
@@ -242,26 +251,42 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
             ),
           ),
 
-          // Search Provider Section (if extension has custom search)
-          if (extension.hasCustomSearch) ...[
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Search Provider'),
+          if (extension.hasURLHandler && extension.urlHandler!.patterns.isNotEmpty) ...[
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.extensionUrlHandler),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
-                  _SearchProviderInfo(
-                    extension: extension,
+                  _URLHandlerInfo(
+                    patterns: extension.urlHandler!.patterns,
                   ),
                 ],
               ),
             ),
           ],
 
-          // Post-Processing Hooks (if available)
+          if (extension.hasDownloadProvider && extension.qualityOptions.isNotEmpty) ...[
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.extensionQualityOptions),
+            ),
+            SliverToBoxAdapter(
+              child: SettingsGroup(
+                children: extension.qualityOptions.asMap().entries.map((entry) {
+                  final index = entry.key;
+                  final quality = entry.value;
+                  return _QualityOptionItem(
+                    quality: quality,
+                    showDivider: index < extension.qualityOptions.length - 1,
+                  );
+                }).toList(),
+              ),
+            ),
+          ],
+
           if (extension.hasPostProcessing && extension.postProcessing!.hooks.isNotEmpty) ...[
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Post-Processing Hooks'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.extensionPostProcessingHooks),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -277,10 +302,9 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
             ),
           ],
 
-          // Permissions
           if (extension.permissions.isNotEmpty) ...[
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Permissions'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.extensionPermissions),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -296,10 +320,9 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
             ),
           ],
 
-          // Settings
           if (extension.settings.isNotEmpty) ...[
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Settings'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.extensionSettings),
             ),
             if (_isLoadingSettings)
               const SliverToBoxAdapter(
@@ -325,14 +348,13 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
               ),
           ],
 
-          // Remove button
           SliverToBoxAdapter(
             child: Padding(
               padding: const EdgeInsets.all(16),
               child: OutlinedButton.icon(
                 onPressed: () => _confirmRemove(context),
                 icon: const Icon(Icons.delete_outline),
-                label: const Text('Remove Extension'),
+                label: Text(context.l10n.extensionRemoveButton),
                 style: OutlinedButton.styleFrom(
                   foregroundColor: colorScheme.error,
                   side: BorderSide(color: colorScheme.error),
@@ -348,6 +370,7 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
           const SliverToBoxAdapter(child: SizedBox(height: 32)),
         ],
       ),
+    ),
     );
   }
 
@@ -365,22 +388,21 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
     final confirmed = await showDialog<bool>(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Remove Extension'),
-        content: const Text(
-          'Are you sure you want to remove this extension? '
-          'This action cannot be undone.',
+        title: Text(context.l10n.dialogRemoveExtension),
+        content: Text(
+          context.l10n.dialogRemoveExtensionMessage,
         ),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context, false),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           FilledButton(
             onPressed: () => Navigator.pop(context, true),
             style: FilledButton.styleFrom(
               backgroundColor: colorScheme.error,
             ),
-            child: const Text('Remove'),
+            child: Text(context.l10n.dialogRemove),
           ),
         ],
       ),
@@ -391,7 +413,6 @@ class _ExtensionDetailPageState extends ConsumerState<ExtensionDetailPage> {
           .read(extensionProvider.notifier)
           .removeExtension(widget.extensionId);
       if (success && mounted) {
-        // Refresh store to update isInstalled status
         ref.read(storeProvider.notifier).refresh();
         Navigator.pop(this.context);
       }
@@ -524,7 +545,6 @@ class _PermissionItem extends StatelessWidget {
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Parse permission to get icon and description
     IconData icon = Icons.security;
     String description = permission;
     
@@ -692,7 +712,7 @@ class _SettingItem extends StatelessWidget {
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           FilledButton(
             onPressed: () {
@@ -702,7 +722,7 @@ class _SettingItem extends StatelessWidget {
               onChanged(newValue);
               Navigator.pop(context);
             },
-            child: const Text('Save'),
+            child: Text(context.l10n.dialogSave),
           ),
         ],
       ),
@@ -817,17 +837,18 @@ class _PostProcessingHookItem extends StatelessWidget {
   }
 }
 
-class _SearchProviderInfo extends StatelessWidget {
-  final Extension extension;
 
-  const _SearchProviderInfo({
-    required this.extension,
+
+class _URLHandlerInfo extends StatelessWidget {
+  final List<String> patterns;
+
+  const _URLHandlerInfo({
+    required this.patterns,
   });
 
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
-    final searchBehavior = extension.searchBehavior;
     
     return Padding(
       padding: const EdgeInsets.all(16),
@@ -840,12 +861,12 @@ class _SearchProviderInfo extends StatelessWidget {
                 width: 48,
                 height: 48,
                 decoration: BoxDecoration(
-                  color: colorScheme.secondaryContainer,
+                  color: colorScheme.tertiaryContainer,
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Icon(
-                  Icons.manage_search,
-                  color: colorScheme.onSecondaryContainer,
+                  Icons.link,
+                  color: colorScheme.onTertiaryContainer,
                   size: 24,
                 ),
               ),
@@ -855,14 +876,14 @@ class _SearchProviderInfo extends StatelessWidget {
                   crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
                     Text(
-                      'Custom Search Available',
+                      'Custom URL Handling',
                       style: Theme.of(context).textTheme.titleMedium?.copyWith(
                         fontWeight: FontWeight.w600,
                       ),
                     ),
                     const SizedBox(height: 2),
                     Text(
-                      'This extension provides its own search functionality',
+                      'This extension can handle links from these sites',
                       style: Theme.of(context).textTheme.bodySmall?.copyWith(
                         color: colorScheme.onSurfaceVariant,
                       ),
@@ -873,25 +894,38 @@ class _SearchProviderInfo extends StatelessWidget {
             ],
           ),
           const SizedBox(height: 16),
-          // Search placeholder info
-          if (searchBehavior?.placeholder != null) ...[
-            _InfoTile(
-              icon: Icons.text_fields,
-              label: 'Search Hint',
-              value: searchBehavior!.placeholder!,
-            ),
-            const SizedBox(height: 8),
-          ],
-          // Primary search info
-          _InfoTile(
-            icon: searchBehavior?.primary == true ? Icons.star : Icons.star_border,
-            label: 'Priority',
-            value: searchBehavior?.primary == true 
-                ? 'Primary search provider' 
-                : 'Secondary search provider',
+          Wrap(
+            spacing: 8,
+            runSpacing: 8,
+            children: patterns.map((pattern) {
+              return Container(
+                padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
+                decoration: BoxDecoration(
+                  color: colorScheme.surfaceContainerHighest,
+                  borderRadius: BorderRadius.circular(8),
+                ),
+                child: Row(
+                  mainAxisSize: MainAxisSize.min,
+                  children: [
+                    Icon(
+                      Icons.language,
+                      size: 16,
+                      color: colorScheme.primary,
+                    ),
+                    const SizedBox(width: 6),
+                    Text(
+                      pattern,
+                      style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                        color: colorScheme.onSurface,
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                  ],
+                ),
+              );
+            }).toList(),
           ),
           const SizedBox(height: 16),
-          // Usage instructions
           Container(
             padding: const EdgeInsets.all(12),
             decoration: BoxDecoration(
@@ -908,7 +942,7 @@ class _SearchProviderInfo extends StatelessWidget {
                 const SizedBox(width: 12),
                 Expanded(
                   child: Text(
-                    'To use this search provider, tap the search bar on the Home tab and select "${extension.displayName}" from the provider chips.',
+                    'Share links from these sites to SpotiFLAC and this extension will handle them.',
                     style: Theme.of(context).textTheme.bodySmall?.copyWith(
                       color: colorScheme.onSurfaceVariant,
                     ),
@@ -923,44 +957,95 @@ class _SearchProviderInfo extends StatelessWidget {
   }
 }
 
-class _InfoTile extends StatelessWidget {
-  final IconData icon;
-  final String label;
-  final String value;
+class _QualityOptionItem extends StatelessWidget {
+  final QualityOption quality;
+  final bool showDivider;
 
-  const _InfoTile({
-    required this.icon,
-    required this.label,
-    required this.value,
+  const _QualityOptionItem({
+    required this.quality,
+    this.showDivider = true,
   });
 
   @override
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
     
-    return Row(
+    return Column(
+      mainAxisSize: MainAxisSize.min,
       children: [
-        Icon(
-          icon,
-          size: 18,
-          color: colorScheme.onSurfaceVariant,
-        ),
-        const SizedBox(width: 8),
-        Text(
-          '$label: ',
-          style: Theme.of(context).textTheme.bodySmall?.copyWith(
-            color: colorScheme.onSurfaceVariant,
+        Padding(
+          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
+          child: Row(
+            children: [
+              Container(
+                width: 40,
+                height: 40,
+                decoration: BoxDecoration(
+                  color: colorScheme.secondaryContainer,
+                  borderRadius: BorderRadius.circular(10),
+                ),
+                child: Icon(
+                  Icons.high_quality,
+                  color: colorScheme.onSecondaryContainer,
+                  size: 20,
+                ),
+              ),
+              const SizedBox(width: 16),
+              Expanded(
+                child: Column(
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    Text(
+                      quality.label,
+                      style: Theme.of(context).textTheme.bodyLarge?.copyWith(
+                        fontWeight: FontWeight.w500,
+                      ),
+                    ),
+                    if (quality.description != null && quality.description!.isNotEmpty) ...[
+                      const SizedBox(height: 2),
+                      Text(
+                        quality.description!,
+                        style: Theme.of(context).textTheme.bodySmall?.copyWith(
+                          color: colorScheme.onSurfaceVariant,
+                        ),
+                      ),
+                    ],
+                    const SizedBox(height: 4),
+                    Text(
+                      quality.id,
+                      style: Theme.of(context).textTheme.labelSmall?.copyWith(
+                        color: colorScheme.primary,
+                        fontFamily: 'monospace',
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+              if (quality.settings.isNotEmpty)
+                Container(
+                  padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+                  decoration: BoxDecoration(
+                    color: colorScheme.surfaceContainerHighest,
+                    borderRadius: BorderRadius.circular(8),
+                  ),
+                  child: Text(
+                    '${quality.settings.length} setting${quality.settings.length > 1 ? 's' : ''}',
+                    style: Theme.of(context).textTheme.labelSmall?.copyWith(
+                      color: colorScheme.onSurfaceVariant,
+                    ),
+                  ),
+                ),
+            ],
           ),
         ),
-        Expanded(
-          child: Text(
-            value,
-            style: Theme.of(context).textTheme.bodySmall?.copyWith(
-              color: colorScheme.onSurface,
-              fontWeight: FontWeight.w500,
-            ),
+        if (showDivider)
+          Divider(
+            height: 1,
+            thickness: 1,
+            indent: 72,
+            endIndent: 16,
+            color: colorScheme.outlineVariant.withValues(alpha: 0.3),
           ),
-        ),
       ],
     );
   }

lib/screens/settings/extensions_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:path_provider/path_provider.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
 import 'package:spotiflac_android/screens/settings/extension_detail_page.dart';
@@ -31,7 +32,6 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
       final extensionsDir = '${appDir.path}/extensions';
       final dataDir = '${appDir.path}/extension_data';
       
-      // Create directories if they don't exist
       await Directory(extensionsDir).create(recursive: true);
       await Directory(dataDir).create(recursive: true);
       
@@ -45,10 +45,11 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
     final colorScheme = Theme.of(context).colorScheme;
     final topPadding = MediaQuery.of(context).padding.top;
 
-    return Scaffold(
-      body: CustomScrollView(
-        slivers: [
-          // App Bar
+    return PopScope(
+      canPop: true, // Always allow back gesture
+      child: Scaffold(
+        body: CustomScrollView(
+          slivers: [
           SliverAppBar(
             expandedHeight: 120 + topPadding,
             collapsedHeight: kToolbarHeight,
@@ -72,7 +73,7 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
                   expandedTitleScale: 1.0,
                   titlePadding: EdgeInsets.only(left: leftPadding, bottom: 16),
                   title: Text(
-                    'Extensions',
+                    context.l10n.extensionsTitle,
                     style: TextStyle(
                       fontSize: 20 + (8 * expandRatio),
                       fontWeight: FontWeight.bold,
@@ -84,7 +85,6 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
             ),
           ),
 
-          // Loading indicator
           if (extState.isLoading)
             const SliverToBoxAdapter(
               child: Padding(
@@ -93,7 +93,6 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
               ),
             ),
 
-          // Error message
           if (extState.error != null)
             SliverToBoxAdapter(
               child: Padding(
@@ -120,9 +119,8 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
               ),
             ),
 
-          // Provider Priority
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Provider Priority'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.extensionsProviderPrioritySection),
           ),
           SliverToBoxAdapter(
             child: SettingsGroup(
@@ -134,9 +132,8 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
             ),
           ),
 
-          // Installed Extensions
-          const SliverToBoxAdapter(
-            child: SettingsSectionHeader(title: 'Installed Extensions'),
+          SliverToBoxAdapter(
+            child: SettingsSectionHeader(title: context.l10n.extensionsInstalledSection),
           ),
 
           if (extState.extensions.isEmpty && !extState.isLoading)
@@ -158,14 +155,14 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
                       ),
                       const SizedBox(height: 12),
                       Text(
-                        'No extensions installed',
+                        context.l10n.extensionsNoExtensions,
                         style: Theme.of(context).textTheme.titleMedium?.copyWith(
                           color: colorScheme.onSurfaceVariant,
                         ),
                       ),
                       const SizedBox(height: 4),
                       Text(
-                        'Install .spotiflac-ext files to add new providers',
+                        context.l10n.extensionsNoExtensionsSubtitle,
                         style: Theme.of(context).textTheme.bodySmall?.copyWith(
                           color: colorScheme.onSurfaceVariant,
                         ),
@@ -200,14 +197,13 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
               ),
             ),
 
-          // Install button
           SliverToBoxAdapter(
             child: Padding(
               padding: const EdgeInsets.all(16),
               child: FilledButton.icon(
                 onPressed: _installExtension,
                 icon: const Icon(Icons.add),
-                label: const Text('Install Extension'),
+                label: Text(context.l10n.extensionsInstallButton),
                 style: FilledButton.styleFrom(
                   padding: const EdgeInsets.symmetric(vertical: 16),
                   shape: RoundedRectangleBorder(
@@ -218,7 +214,6 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
             ),
           ),
 
-          // Info section
           SliverToBoxAdapter(
             child: Padding(
               padding: const EdgeInsets.fromLTRB(16, 8, 16, 32),
@@ -234,8 +229,7 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
                     const SizedBox(width: 12),
                     Expanded(
                       child: Text(
-                        'Extensions can add new metadata and download providers. '
-                        'Only install extensions from trusted sources.',
+                        context.l10n.extensionsInfoTip,
                         style: Theme.of(context).textTheme.bodySmall?.copyWith(
                           color: colorScheme.onTertiaryContainer,
                         ),
@@ -248,6 +242,7 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
           ),
         ],
       ),
+    ),
     );
   }
 
@@ -263,8 +258,8 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
         if (!file.path!.endsWith('.spotiflac-ext')) {
           if (mounted) {
             ScaffoldMessenger.of(context).showSnackBar(
-              const SnackBar(
-                content: Text('Please select a .spotiflac-ext file'),
+              SnackBar(
+                content: Text(context.l10n.snackbarSelectExtFile),
               ),
             );
           }
@@ -279,13 +274,11 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
           final extState = ref.read(extensionProvider);
           String message;
           if (success) {
-            message = 'Extension installed successfully';
+            message = context.l10n.extensionsInstalledSuccess;
           } else {
-            // Parse friendly error message
             message = _getFriendlyErrorMessage(extState.error);
           }
           
-          // Clear the error from state to avoid showing it twice (in error container)
           ref.read(extensionProvider.notifier).clearError();
           
           ScaffoldMessenger.of(context).showSnackBar(
@@ -302,15 +295,11 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
     
     String message = error;
     
-    // Remove PlatformException wrapper if present
-    // Format: PlatformException(ERROR, actual message, null, null)
     if (message.contains('PlatformException')) {
-      // Try to extract the actual error message
       final match = RegExp(r'PlatformException\([^,]+,\s*([^,]+(?:,[^,]+)?),').firstMatch(message);
       if (match != null) {
         message = match.group(1)?.trim() ?? message;
       } else {
-        // Fallback: try simpler extraction
         final simpleMatch = RegExp(r'PlatformException\([^,]+,\s*(.+?),\s*null').firstMatch(message);
         if (simpleMatch != null) {
           message = simpleMatch.group(1)?.trim() ?? message;
@@ -318,7 +307,6 @@ class _ExtensionsPageState extends ConsumerState<ExtensionsPage> {
       }
     }
     
-    // Clean up any remaining artifacts
     message = message.replaceAll(RegExp(r',\s*null\s*,\s*null\)?$'), '');
     message = message.replaceAll(RegExp(r'^\s*,\s*'), '');
     
@@ -353,7 +341,6 @@ class _ExtensionItem extends StatelessWidget {
             padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
             child: Row(
               children: [
-                // Extension icon
                 Container(
                   width: 44,
                   height: 44,
@@ -387,7 +374,6 @@ class _ExtensionItem extends StatelessWidget {
                         ),
                 ),
                 const SizedBox(width: 16),
-                // Extension info
                 Expanded(
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
@@ -401,8 +387,8 @@ class _ExtensionItem extends StatelessWidget {
                       const SizedBox(height: 2),
                       Text(
                         hasError
-                            ? extension.errorMessage ?? 'Error loading extension'
-                            : 'v${extension.version} by ${extension.author}',
+                            ? extension.errorMessage ?? context.l10n.extensionsErrorLoading
+                            : 'v${extension.version} ${context.l10n.extensionsAuthor(extension.author)}',
                         style: Theme.of(context).textTheme.bodySmall?.copyWith(
                           color: hasError
                               ? colorScheme.error
@@ -412,7 +398,6 @@ class _ExtensionItem extends StatelessWidget {
                     ],
                   ),
                 ),
-                // Toggle switch
                 Switch(
                   value: extension.enabled,
                   onChanged: hasError ? null : onToggle,
@@ -442,7 +427,6 @@ class _DownloadPriorityItem extends ConsumerWidget {
     final extState = ref.watch(extensionProvider);
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Check if any extension has download provider
     final hasDownloadExtensions = extState.extensions
         .any((e) => e.enabled && e.hasDownloadProvider);
     
@@ -471,7 +455,7 @@ class _DownloadPriorityItem extends ConsumerWidget {
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
                   Text(
-                    'Download Priority',
+                    context.l10n.extensionsDownloadPriority,
                     style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                       color: hasDownloadExtensions 
                           ? null 
@@ -481,8 +465,8 @@ class _DownloadPriorityItem extends ConsumerWidget {
                   const SizedBox(height: 2),
                   Text(
                     hasDownloadExtensions 
-                        ? 'Set download service order'
-                        : 'No extensions with download provider',
+                        ? context.l10n.extensionsDownloadPrioritySubtitle
+                        : context.l10n.extensionsNoDownloadProvider,
                     style: Theme.of(context).textTheme.bodySmall?.copyWith(
                       color: colorScheme.onSurfaceVariant,
                     ),
@@ -511,7 +495,6 @@ class _MetadataPriorityItem extends ConsumerWidget {
     final extState = ref.watch(extensionProvider);
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Check if any extension has metadata provider
     final hasMetadataExtensions = extState.extensions
         .any((e) => e.enabled && e.hasMetadataProvider);
     
@@ -540,7 +523,7 @@ class _MetadataPriorityItem extends ConsumerWidget {
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [
                   Text(
-                    'Metadata Priority',
+                    context.l10n.extensionsMetadataPriority,
                     style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                       color: hasMetadataExtensions 
                           ? null 
@@ -550,8 +533,8 @@ class _MetadataPriorityItem extends ConsumerWidget {
                   const SizedBox(height: 2),
                   Text(
                     hasMetadataExtensions 
-                        ? 'Set search & metadata source order'
-                        : 'No extensions with metadata provider',
+                        ? context.l10n.extensionsMetadataPrioritySubtitle
+                        : context.l10n.extensionsNoMetadataProvider,
                     style: Theme.of(context).textTheme.bodySmall?.copyWith(
                       color: colorScheme.onSurfaceVariant,
                     ),
@@ -581,13 +564,11 @@ class _SearchProviderSelector extends ConsumerWidget {
     final extState = ref.watch(extensionProvider);
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Get extensions with custom search
     final searchProviders = extState.extensions
         .where((e) => e.enabled && e.hasCustomSearch)
         .toList();
     
-    // Get current provider name
-    String currentProviderName = 'Default (Deezer/Spotify)';
+    String currentProviderName = context.l10n.extensionDefaultProvider;
     if (settings.searchProvider != null && settings.searchProvider!.isNotEmpty) {
       final ext = searchProviders.where((e) => e.id == settings.searchProvider).firstOrNull;
       currentProviderName = ext?.displayName ?? settings.searchProvider!;
@@ -616,7 +597,7 @@ class _SearchProviderSelector extends ConsumerWidget {
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
                       Text(
-                        'Search Provider',
+                        context.l10n.extensionsSearchProvider,
                         style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                           color: searchProviders.isEmpty 
                               ? colorScheme.outline 
@@ -626,7 +607,7 @@ class _SearchProviderSelector extends ConsumerWidget {
                       const SizedBox(height: 2),
                       Text(
                         searchProviders.isEmpty 
-                            ? 'No extensions with custom search'
+                            ? context.l10n.extensionsNoCustomSearch
                             : currentProviderName,
                         style: Theme.of(context).textTheme.bodySmall?.copyWith(
                           color: colorScheme.onSurfaceVariant,
@@ -671,7 +652,7 @@ class _SearchProviderSelector extends ConsumerWidget {
             Padding(
               padding: const EdgeInsets.fromLTRB(24, 24, 24, 8),
               child: Text(
-                'Search Provider',
+                ctx.l10n.extensionsSearchProvider,
                 style: Theme.of(context).textTheme.titleLarge?.copyWith(
                   fontWeight: FontWeight.bold,
                 ),
@@ -680,17 +661,16 @@ class _SearchProviderSelector extends ConsumerWidget {
             Padding(
               padding: const EdgeInsets.fromLTRB(24, 0, 24, 16),
               child: Text(
-                'Choose which service to use for searching tracks',
+                ctx.l10n.extensionsSearchProviderDescription,
                 style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                   color: colorScheme.onSurfaceVariant,
                 ),
               ),
             ),
-            // Default option
             ListTile(
               leading: Icon(Icons.music_note, color: colorScheme.primary),
-              title: const Text('Default (Deezer/Spotify)'),
-              subtitle: const Text('Use built-in search'),
+              title: Text(ctx.l10n.extensionDefaultProvider),
+              subtitle: Text(ctx.l10n.extensionDefaultProviderSubtitle),
               trailing: (settings.searchProvider == null || settings.searchProvider!.isEmpty)
                   ? Icon(Icons.check_circle, color: colorScheme.primary)
                   : Icon(Icons.circle_outlined, color: colorScheme.outline),
@@ -699,11 +679,10 @@ class _SearchProviderSelector extends ConsumerWidget {
                 Navigator.pop(ctx);
               },
             ),
-            // Extension options
             ...searchProviders.map((ext) => ListTile(
               leading: Icon(Icons.extension, color: colorScheme.secondary),
               title: Text(ext.displayName),
-              subtitle: Text(ext.searchBehavior?.placeholder ?? 'Custom search'),
+              subtitle: Text(ext.searchBehavior?.placeholder ?? ctx.l10n.extensionsCustomSearch),
               trailing: settings.searchProvider == ext.id
                   ? Icon(Icons.check_circle, color: colorScheme.primary)
                   : Icon(Icons.circle_outlined, color: colorScheme.outline),

lib/screens/settings/log_screen.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:share_plus/share_plus.dart' show ShareParams, SharePlus;
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/utils/logger.dart';
 import 'package:spotiflac_android/widgets/settings_group.dart';
 
@@ -24,14 +25,12 @@ class _LogScreenState extends State<LogScreen> {
   void initState() {
     super.initState();
     LogBuffer().addListener(_onLogUpdate);
-    // Start polling Go backend logs
     LogBuffer().startGoLogPolling();
   }
 
   @override
   void dispose() {
     LogBuffer().removeListener(_onLogUpdate);
-    // Stop polling when leaving screen
     LogBuffer().stopGoLogPolling();
     _scrollController.dispose();
     _searchController.dispose();
@@ -67,7 +66,7 @@ class _LogScreenState extends State<LogScreen> {
     Clipboard.setData(ClipboardData(text: logs));
     ScaffoldMessenger.of(context).showSnackBar(
       SnackBar(
-        content: const Text('Logs copied to clipboard'),
+        content: Text(context.l10n.logCopied),
         behavior: SnackBarBehavior.floating,
         shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
         duration: const Duration(seconds: 2),
@@ -84,19 +83,19 @@ class _LogScreenState extends State<LogScreen> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Clear Logs'),
-        content: const Text('Are you sure you want to clear all logs?'),
+        title: Text(context.l10n.logClearLogsTitle),
+        content: Text(context.l10n.logClearLogsMessage),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           FilledButton(
             onPressed: () {
               LogBuffer().clear();
               Navigator.pop(context);
             },
-            child: const Text('Clear'),
+            child: Text(context.l10n.dialogClear),
           ),
         ],
       ),
@@ -125,60 +124,59 @@ class _LogScreenState extends State<LogScreen> {
     final logs = _filteredLogs;
 
     return PopScope(
-      canPop: true,
+      canPop: true, // Always allow back gesture
       child: Scaffold(
         body: CustomScrollView(
           controller: _scrollController,
           slivers: [
-            // Collapsing App Bar with back button - same as other settings pages
             SliverAppBar(
-              expandedHeight: 120 + topPadding,
-              collapsedHeight: kToolbarHeight,
-              floating: false,
-              pinned: true,
-              backgroundColor: colorScheme.surface,
-              surfaceTintColor: Colors.transparent,
-              leading: IconButton(
-                icon: const Icon(Icons.arrow_back),
-                onPressed: () => Navigator.pop(context),
+            expandedHeight: 120 + topPadding,
+            collapsedHeight: kToolbarHeight,
+            floating: false,
+            pinned: true,
+            backgroundColor: colorScheme.surface,
+            surfaceTintColor: Colors.transparent,
+            leading: IconButton(
+              icon: const Icon(Icons.arrow_back),
+              onPressed: () => Navigator.pop(context),
+            ),
+            actions: [
+              IconButton(
+                icon: Icon(_autoScroll ? Icons.vertical_align_bottom : Icons.vertical_align_center),
+                tooltip: _autoScroll ? 'Auto-scroll ON' : 'Auto-scroll OFF',
+                onPressed: () => setState(() => _autoScroll = !_autoScroll),
               ),
-              actions: [
-                IconButton(
-                  icon: Icon(_autoScroll ? Icons.vertical_align_bottom : Icons.vertical_align_center),
-                  tooltip: _autoScroll ? 'Auto-scroll ON' : 'Auto-scroll OFF',
-                  onPressed: () => setState(() => _autoScroll = !_autoScroll),
-                ),
-                IconButton(
-                  icon: const Icon(Icons.copy),
-                  tooltip: 'Copy logs',
-                  onPressed: _copyLogs,
-                ),
-                PopupMenuButton<String>(
-                  icon: const Icon(Icons.more_vert),
-                  onSelected: (value) {
-                    switch (value) {
-                      case 'share':
-                        _shareLogs();
-                        break;
-                      case 'clear':
-                        _clearLogs();
-                        break;
-                    }
-                  },
-                  itemBuilder: (context) => [
-                    const PopupMenuItem(
-                      value: 'share',
-                      child: ListTile(
-                        leading: Icon(Icons.share),
-                        title: Text('Share logs'),
-                        contentPadding: EdgeInsets.zero,
-                      ),
+              IconButton(
+                icon: const Icon(Icons.copy),
+                tooltip: 'Copy logs',
+                onPressed: _copyLogs,
+              ),
+              PopupMenuButton<String>(
+                icon: const Icon(Icons.more_vert),
+                onSelected: (value) {
+                  switch (value) {
+                    case 'share':
+                      _shareLogs();
+                      break;
+                    case 'clear':
+                      _clearLogs();
+                      break;
+                  }
+                },
+                itemBuilder: (context) => [
+                  PopupMenuItem(
+                    value: 'share',
+                    child: ListTile(
+                      leading: const Icon(Icons.share),
+                      title: Text(context.l10n.logShareLogs),
+                      contentPadding: EdgeInsets.zero,
                     ),
-                    const PopupMenuItem(
-                      value: 'clear',
-                      child: ListTile(
-                        leading: Icon(Icons.delete_outline),
-                        title: Text('Clear logs'),
+                  ),
+                  PopupMenuItem(
+                    value: 'clear',
+                    child: ListTile(
+                      leading: const Icon(Icons.delete_outline),
+                        title: Text(context.l10n.logClearLogs),
                         contentPadding: EdgeInsets.zero,
                       ),
                     ),
@@ -195,7 +193,7 @@ class _LogScreenState extends State<LogScreen> {
                     expandedTitleScale: 1.0,
                     titlePadding: EdgeInsets.only(left: leftPadding, bottom: 16),
                     title: Text(
-                      'Logs',
+                      context.l10n.logTitle,
                       style: TextStyle(
                         fontSize: 20 + (8 * expandRatio),
                         fontWeight: FontWeight.bold,
@@ -207,14 +205,12 @@ class _LogScreenState extends State<LogScreen> {
               ),
             ),
 
-            // Filter section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Filter'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.logFilterSection),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
-                  // Level filter
                   Padding(
                     padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
                     child: Row(
@@ -225,10 +221,10 @@ class _LogScreenState extends State<LogScreen> {
                           child: Column(
                             crossAxisAlignment: CrossAxisAlignment.start,
                             children: [
-                              Text('Level', style: Theme.of(context).textTheme.bodyLarge),
+                              Text(context.l10n.logFilterLevel, style: Theme.of(context).textTheme.bodyLarge),
                               const SizedBox(height: 2),
                               Text(
-                                'Filter logs by severity',
+                                context.l10n.logFilterBySeverity,
                                 style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                                   color: colorScheme.onSurfaceVariant,
                                 ),
@@ -268,7 +264,6 @@ class _LogScreenState extends State<LogScreen> {
                     endIndent: 20,
                     color: colorScheme.outlineVariant.withValues(alpha: 0.3),
                   ),
-                  // Search field
                   Padding(
                     padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 12),
                     child: Row(
@@ -279,7 +274,7 @@ class _LogScreenState extends State<LogScreen> {
                           child: TextField(
                             controller: _searchController,
                             decoration: InputDecoration(
-                              hintText: 'Search logs...',
+                              hintText: context.l10n.logSearchHint,
                               isDense: true,
                               contentPadding: const EdgeInsets.symmetric(
                                 horizontal: 16,
@@ -313,19 +308,18 @@ class _LogScreenState extends State<LogScreen> {
               ),
             ),
 
-            // Log entries section
             SliverToBoxAdapter(
               child: SettingsSectionHeader(
-                title: 'Entries (${logs.length}${_selectedLevel != 'ALL' || _searchQuery.isNotEmpty ? ' filtered' : ''})',
+                title: _selectedLevel != 'ALL' || _searchQuery.isNotEmpty 
+                    ? context.l10n.logEntriesFiltered(logs.length)
+                    : context.l10n.logEntries(logs.length),
               ),
             ),
             
-            // Error summary card - shows detected issues
             SliverToBoxAdapter(
               child: _LogSummaryCard(logs: LogBuffer().entries),
             ),
             
-            // Log list
             logs.isEmpty
                 ? SliverToBoxAdapter(
                     child: SettingsGroup(
@@ -342,14 +336,14 @@ class _LogScreenState extends State<LogScreen> {
                               ),
                               const SizedBox(height: 16),
                               Text(
-                                'No logs yet',
+                                context.l10n.logNoLogsYet,
                                 style: Theme.of(context).textTheme.bodyLarge?.copyWith(
                                   color: colorScheme.onSurfaceVariant,
                                 ),
                               ),
                               const SizedBox(height: 4),
                               Text(
-                                'Logs will appear here as you use the app',
+                                context.l10n.logNoLogsYetSubtitle,
                                 style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                                   color: colorScheme.onSurfaceVariant.withValues(alpha: 0.7),
                                 ),
@@ -376,7 +370,6 @@ class _LogScreenState extends State<LogScreen> {
                     ),
                   ),
 
-            // Bottom padding
             const SliverToBoxAdapter(child: SizedBox(height: 32)),
           ],
         ),
@@ -415,7 +408,6 @@ class _LogEntryTile extends StatelessWidget {
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
-              // Header: time, level, tag
               Row(
                 children: [
                   Text(
@@ -475,7 +467,6 @@ class _LogEntryTile extends StatelessWidget {
                 ],
               ),
               const SizedBox(height: 6),
-              // Message
               Text(
                 entry.message,
                 style: TextStyle(
@@ -485,7 +476,6 @@ class _LogEntryTile extends StatelessWidget {
                   height: 1.4,
                 ),
               ),
-              // Error if present
               if (entry.error != null) ...[
                 const SizedBox(height: 4),
                 Text(
@@ -523,10 +513,8 @@ class _LogSummaryCard extends StatelessWidget {
   Widget build(BuildContext context) {
     final colorScheme = Theme.of(context).colorScheme;
     
-    // Analyze logs for issues
     final analysis = _analyzeLogs();
     
-    // Don't show if no issues detected
     if (!analysis.hasIssues) {
       return const SizedBox.shrink();
     }
@@ -544,7 +532,6 @@ class _LogSummaryCard extends StatelessWidget {
           child: Column(
             crossAxisAlignment: CrossAxisAlignment.start,
             children: [
-              // Header
               Row(
                 children: [
                   Icon(
@@ -564,7 +551,6 @@ class _LogSummaryCard extends StatelessWidget {
               ),
               const SizedBox(height: 12),
               
-              // ISP Blocking detected
               if (analysis.hasISPBlocking) ...[
                 _IssueBadge(
                   icon: Icons.block,
@@ -577,7 +563,6 @@ class _LogSummaryCard extends StatelessWidget {
                 const SizedBox(height: 8),
               ],
               
-              // Rate limiting
               if (analysis.hasRateLimit) ...[
                 _IssueBadge(
                   icon: Icons.speed,
@@ -589,7 +574,6 @@ class _LogSummaryCard extends StatelessWidget {
                 const SizedBox(height: 8),
               ],
               
-              // Network errors
               if (analysis.hasNetworkError && !analysis.hasISPBlocking) ...[
                 _IssueBadge(
                   icon: Icons.wifi_off,
@@ -601,7 +585,6 @@ class _LogSummaryCard extends StatelessWidget {
                 const SizedBox(height: 8),
               ],
               
-              // Track not found
               if (analysis.hasNotFound) ...[
                 _IssueBadge(
                   icon: Icons.search_off,
@@ -612,7 +595,6 @@ class _LogSummaryCard extends StatelessWidget {
                 ),
               ],
               
-              // Error count
               const SizedBox(height: 12),
               Text(
                 'Total errors: ${analysis.errorCount}',
@@ -644,7 +626,6 @@ class _LogSummaryCard extends StatelessWidget {
       final errorLower = (log.error ?? '').toLowerCase();
       final combined = '$msgLower $errorLower';
 
-      // Check for ISP blocking (detected by Go backend)
       if (combined.contains('isp blocking') ||
           combined.contains('isp may be') ||
           combined.contains('blocked by isp') ||
@@ -652,21 +633,18 @@ class _LogSummaryCard extends StatelessWidget {
           combined.contains('connection refused')) {
         hasISPBlocking = true;
         
-        // Try to extract domain
         final domainMatch = RegExp(r'domain:\s*([^\s,]+)', caseSensitive: false).firstMatch(combined);
         if (domainMatch != null) {
           blockedDomains.add(domainMatch.group(1)!);
         }
       }
 
-      // Check for rate limiting
       if (combined.contains('rate limit') ||
           combined.contains('429') ||
           combined.contains('too many requests')) {
         hasRateLimit = true;
       }
 
-      // Check for network errors
       if (combined.contains('connection') ||
           combined.contains('timeout') ||
           combined.contains('network') ||
@@ -674,7 +652,6 @@ class _LogSummaryCard extends StatelessWidget {
         hasNetworkError = true;
       }
 
-      // Check for not found
       if (combined.contains('not found') ||
           combined.contains('no results') ||
           combined.contains('could not find')) {

lib/screens/settings/metadata_provider_priority_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 
 class MetadataProviderPriorityPage extends ConsumerStatefulWidget {
@@ -23,16 +24,13 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
     final extState = ref.read(extensionProvider);
     final allProviders = ref.read(extensionProvider.notifier).getAllMetadataProviders();
     
-    // Use saved priority if available, otherwise use default order
     if (extState.metadataProviderPriority.isNotEmpty) {
       _providers = List.from(extState.metadataProviderPriority);
-      // Add any new providers not in saved priority
       for (final provider in allProviders) {
         if (!_providers.contains(provider)) {
           _providers.add(provider);
         }
       }
-      // Remove providers that no longer exist
       _providers.removeWhere((p) => !allProviders.contains(p));
     } else {
       _providers = allProviders;
@@ -56,7 +54,6 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
-            // App Bar
             SliverAppBar(
               expandedHeight: 120 + topPadding,
               collapsedHeight: kToolbarHeight,
@@ -81,7 +78,7 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
                 if (_hasChanges)
                   TextButton(
                     onPressed: _saveChanges,
-                    child: const Text('Save'),
+                    child: Text(context.l10n.dialogSave),
                   ),
               ],
               flexibleSpace: LayoutBuilder(
@@ -96,7 +93,7 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
                     expandedTitleScale: 1.0,
                     titlePadding: EdgeInsets.only(left: leftPadding, bottom: 16),
                     title: Text(
-                      'Metadata Priority',
+                      context.l10n.metadataProviderPriorityTitle,
                       style: TextStyle(
                         fontSize: 20 + (8 * expandRatio),
                         fontWeight: FontWeight.bold,
@@ -108,13 +105,11 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
               ),
             ),
 
-            // Description
             SliverToBoxAdapter(
               child: Padding(
                 padding: const EdgeInsets.all(16),
                 child: Text(
-                  'Drag to reorder metadata providers. The app will try providers '
-                  'from top to bottom when searching for tracks and fetching metadata.',
+                  context.l10n.metadataProviderPriorityDescription,
                   style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                     color: colorScheme.onSurfaceVariant,
                   ),
@@ -122,7 +117,6 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
               ),
             ),
 
-            // Provider list
             SliverPadding(
               padding: const EdgeInsets.symmetric(horizontal: 16),
               sliver: SliverReorderableList(
@@ -150,7 +144,6 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
               ),
             ),
 
-            // Info section
             SliverToBoxAdapter(
               child: Padding(
                 padding: const EdgeInsets.all(16),
@@ -166,8 +159,7 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
                       const SizedBox(width: 12),
                       Expanded(
                         child: Text(
-                          'Deezer has no rate limits and is recommended as primary. '
-                          'Spotify may rate limit after many requests.',
+                          context.l10n.metadataProviderPriorityInfo,
                           style: Theme.of(context).textTheme.bodySmall?.copyWith(
                             color: colorScheme.onTertiaryContainer,
                           ),
@@ -190,16 +182,16 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
     final result = await showDialog<bool>(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Discard Changes?'),
-        content: const Text('You have unsaved changes. Do you want to discard them?'),
+        title: Text(context.l10n.dialogDiscardChanges),
+        content: Text(context.l10n.dialogUnsavedChanges),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context, false),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           FilledButton(
             onPressed: () => Navigator.pop(context, true),
-            child: const Text('Discard'),
+            child: Text(context.l10n.dialogDiscard),
           ),
         ],
       ),
@@ -214,7 +206,7 @@ class _MetadataProviderPriorityPageState extends ConsumerState<MetadataProviderP
     });
     if (mounted) {
       ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(content: Text('Metadata provider priority saved')),
+        SnackBar(content: Text(context.l10n.snackbarMetadataProviderSaved)),
       );
     }
   }
@@ -246,7 +238,7 @@ class _MetadataProviderItem extends StatelessWidget {
           )
         : colorScheme.surfaceContainerHigh;
 
-    final info = _getProviderInfo(provider);
+    final info = _getProviderInfo(context, provider);
 
     return Padding(
       padding: const EdgeInsets.only(bottom: 8),
@@ -259,7 +251,6 @@ class _MetadataProviderItem extends StatelessWidget {
             padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
             child: Row(
               children: [
-                // Priority number
                 Container(
                   width: 28,
                   height: 28,
@@ -282,7 +273,6 @@ class _MetadataProviderItem extends StatelessWidget {
                   ),
                 ),
                 const SizedBox(width: 16),
-                // Provider icon
                 Icon(
                   info.icon,
                   color: info.isBuiltIn
@@ -290,7 +280,6 @@ class _MetadataProviderItem extends StatelessWidget {
                       : colorScheme.secondary,
                 ),
                 const SizedBox(width: 12),
-                // Provider name
                 Expanded(
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
@@ -310,7 +299,6 @@ class _MetadataProviderItem extends StatelessWidget {
                     ],
                   ),
                 ),
-                // Drag handle
                 Icon(
                   Icons.drag_handle,
                   color: colorScheme.onSurfaceVariant,
@@ -323,28 +311,27 @@ class _MetadataProviderItem extends StatelessWidget {
     );
   }
 
-  _MetadataProviderInfo _getProviderInfo(String provider) {
+  _MetadataProviderInfo _getProviderInfo(BuildContext context, String provider) {
     switch (provider) {
       case 'deezer':
         return _MetadataProviderInfo(
           name: 'Deezer',
           icon: Icons.album,
-          description: 'No rate limits',
+          description: context.l10n.metadataNoRateLimits,
           isBuiltIn: true,
         );
       case 'spotify':
         return _MetadataProviderInfo(
           name: 'Spotify',
           icon: Icons.music_note,
-          description: 'May rate limit',
+          description: context.l10n.metadataMayRateLimit,
           isBuiltIn: true,
         );
       default:
-        // Extension provider
         return _MetadataProviderInfo(
           name: provider,
           icon: Icons.extension,
-          description: 'Extension',
+          description: context.l10n.providerExtension,
           isBuiltIn: false,
         );
     }

lib/screens/settings/options_settings_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/models/settings.dart';
 import 'package:spotiflac_android/providers/download_queue_provider.dart';
 import 'package:spotiflac_android/providers/settings_provider.dart';
@@ -18,53 +19,51 @@ class OptionsSettingsPage extends ConsumerWidget {
     final topPadding = MediaQuery.of(context).padding.top;
 
     return PopScope(
-      canPop: true,
+      canPop: true, // Always allow back gesture
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
-            // Collapsing App Bar with back button
             SliverAppBar(
-              expandedHeight: 120 + topPadding,
-              collapsedHeight: kToolbarHeight,
-              floating: false,
-              pinned: true,
-              backgroundColor: colorScheme.surface,
-              surfaceTintColor: Colors.transparent,
-              leading: IconButton(
-                icon: const Icon(Icons.arrow_back),
-                onPressed: () => Navigator.pop(context),
-              ),
-              flexibleSpace: LayoutBuilder(
-                builder: (context, constraints) {
-                  final maxHeight = 120 + topPadding;
-                  final minHeight = kToolbarHeight + topPadding;
-                  final expandRatio =
-                      ((constraints.maxHeight - minHeight) /
-                              (maxHeight - minHeight))
-                          .clamp(0.0, 1.0);
-                  final leftPadding = 56 - (32 * expandRatio); // 56 -> 24
-                  return FlexibleSpaceBar(
-                    expandedTitleScale: 1.0,
-                    titlePadding: EdgeInsets.only(
-                      left: leftPadding,
-                      bottom: 16,
-                    ),
-                    title: Text(
-                      'Options',
-                      style: TextStyle(
-                        fontSize: 20 + (8 * expandRatio), // 20 -> 28
-                        fontWeight: FontWeight.bold,
-                        color: colorScheme.onSurface,
-                      ),
-                    ),
-                  );
-                },
-              ),
+            expandedHeight: 120 + topPadding,
+            collapsedHeight: kToolbarHeight,
+            floating: false,
+            pinned: true,
+            backgroundColor: colorScheme.surface,
+            surfaceTintColor: Colors.transparent,
+            leading: IconButton(
+              icon: const Icon(Icons.arrow_back),
+              onPressed: () => Navigator.pop(context),
             ),
+            flexibleSpace: LayoutBuilder(
+              builder: (context, constraints) {
+                final maxHeight = 120 + topPadding;
+                final minHeight = kToolbarHeight + topPadding;
+                final expandRatio =
+                    ((constraints.maxHeight - minHeight) /
+                            (maxHeight - minHeight))
+                        .clamp(0.0, 1.0);
+                final leftPadding = 56 - (32 * expandRatio); // 56 -> 24
+                return FlexibleSpaceBar(
+                  expandedTitleScale: 1.0,
+                  titlePadding: EdgeInsets.only(
+                    left: leftPadding,
+                    bottom: 16,
+                  ),
+                  title: Text(
+                    context.l10n.optionsTitle,
+                    style: TextStyle(
+                      fontSize: 20 + (8 * expandRatio), // 20 -> 28
+                      fontWeight: FontWeight.bold,
+                      color: colorScheme.onSurface,
+                    ),
+                  ),
+                );
+              },
+            ),
+          ),
 
-            // Search Source section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Search Source'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionSearchSource),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -76,7 +75,6 @@ class OptionsSettingsPage extends ConsumerWidget {
                         .setMetadataSource(v),
                   ),
                   if (settings.metadataSource == 'spotify') ...[
-                    // Info card about Spotify credentials requirement
                     if (settings.spotifyClientId.isEmpty)
                       Padding(
                         padding: const EdgeInsets.fromLTRB(16, 8, 16, 8),
@@ -93,7 +91,7 @@ class OptionsSettingsPage extends ConsumerWidget {
                                 const SizedBox(width: 12),
                                 Expanded(
                                   child: Text(
-                                    'Spotify requires your own API credentials. Get them free from developer.spotify.com',
+                                    context.l10n.optionsSpotifyWarning,
                                     style: TextStyle(
                                       color: Theme.of(context).colorScheme.onErrorContainer,
                                       fontSize: 12,
@@ -107,10 +105,10 @@ class OptionsSettingsPage extends ConsumerWidget {
                       ),
                     SettingsItem(
                       icon: Icons.key,
-                      title: 'Spotify Credentials',
+                      title: context.l10n.optionsSpotifyCredentials,
                       subtitle: settings.spotifyClientId.isNotEmpty
-                          ? 'Client ID: ${settings.spotifyClientId.length > 8 ? '${settings.spotifyClientId.substring(0, 8)}...' : settings.spotifyClientId}'
-                          : 'Required - tap to configure',
+                          ? context.l10n.optionsSpotifyCredentialsConfigured(settings.spotifyClientId.length > 8 ? settings.spotifyClientId.substring(0, 8) : settings.spotifyClientId)
+                          : context.l10n.optionsSpotifyCredentialsRequired,
                       onTap: () =>
                           _showSpotifyCredentialsDialog(context, ref, settings),
                       trailing: Icon(
@@ -129,17 +127,16 @@ class OptionsSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Download options section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Download'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionDownload),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
                   SettingsSwitchItem(
                     icon: Icons.sync,
-                    title: 'Auto Fallback',
-                    subtitle: 'Try other services if download fails',
+                    title: context.l10n.optionsAutoFallback,
+                    subtitle: context.l10n.optionsAutoFallbackSubtitle,
                     value: settings.autoFallback,
                     onChanged: (v) =>
                         ref.read(settingsProvider.notifier).setAutoFallback(v),
@@ -147,10 +144,10 @@ class OptionsSettingsPage extends ConsumerWidget {
                   if (hasExtensions)
                     SettingsSwitchItem(
                       icon: Icons.extension,
-                      title: 'Use Extension Providers',
+                      title: context.l10n.optionsUseExtensionProviders,
                       subtitle: settings.useExtensionProviders
-                          ? 'Extensions will be tried first'
-                          : 'Using built-in providers only',
+                          ? context.l10n.optionsUseExtensionProvidersOn
+                          : context.l10n.optionsUseExtensionProvidersOff,
                       value: settings.useExtensionProviders,
                       onChanged: (v) => ref
                           .read(settingsProvider.notifier)
@@ -158,16 +155,16 @@ class OptionsSettingsPage extends ConsumerWidget {
                     ),
                   SettingsSwitchItem(
                     icon: Icons.lyrics,
-                    title: 'Embed Lyrics',
-                    subtitle: 'Embed synced lyrics into FLAC files',
+                    title: context.l10n.optionsEmbedLyrics,
+                    subtitle: context.l10n.optionsEmbedLyricsSubtitle,
                     value: settings.embedLyrics,
                     onChanged: (v) =>
                         ref.read(settingsProvider.notifier).setEmbedLyrics(v),
                   ),
                   SettingsSwitchItem(
                     icon: Icons.image,
-                    title: 'Max Quality Cover',
-                    subtitle: 'Download highest resolution cover art',
+                    title: context.l10n.optionsMaxQualityCover,
+                    subtitle: context.l10n.optionsMaxQualityCoverSubtitle,
                     value: settings.maxQualityCover,
                     onChanged: (v) => ref
                         .read(settingsProvider.notifier)
@@ -178,9 +175,8 @@ class OptionsSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Performance section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Performance'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionPerformance),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
@@ -195,17 +191,16 @@ class OptionsSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // App section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'App'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionApp),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
                   SettingsSwitchItem(
                     icon: Icons.store,
-                    title: 'Extension Store',
-                    subtitle: 'Show Store tab in navigation',
+                    title: context.l10n.optionsExtensionStore,
+                    subtitle: context.l10n.optionsExtensionStoreSubtitle,
                     value: settings.showExtensionStore,
                     onChanged: (v) => ref
                         .read(settingsProvider.notifier)
@@ -213,8 +208,8 @@ class OptionsSettingsPage extends ConsumerWidget {
                   ),
                   SettingsSwitchItem(
                     icon: Icons.system_update,
-                    title: 'Check for Updates',
-                    subtitle: 'Notify when new version is available',
+                    title: context.l10n.optionsCheckUpdates,
+                    subtitle: context.l10n.optionsCheckUpdatesSubtitle,
                     value: settings.checkForUpdates,
                     onChanged: (v) => ref
                         .read(settingsProvider.notifier)
@@ -229,17 +224,16 @@ class OptionsSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Data section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Data'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionData),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
                   SettingsItem(
                     icon: Icons.delete_forever,
-                    title: 'Clear Download History',
-                    subtitle: 'Remove all downloaded tracks from history',
+                    title: context.l10n.optionsClearHistory,
+                    subtitle: context.l10n.optionsClearHistorySubtitle,
                     onTap: () =>
                         _showClearHistoryDialog(context, ref, colorScheme),
                     showDivider: false,
@@ -248,19 +242,18 @@ class OptionsSettingsPage extends ConsumerWidget {
               ),
             ),
 
-            // Debug section
-            const SliverToBoxAdapter(
-              child: SettingsSectionHeader(title: 'Debug'),
+            SliverToBoxAdapter(
+              child: SettingsSectionHeader(title: context.l10n.sectionDebug),
             ),
             SliverToBoxAdapter(
               child: SettingsGroup(
                 children: [
                   SettingsSwitchItem(
                     icon: Icons.bug_report,
-                    title: 'Detailed Logging',
+                    title: context.l10n.optionsDetailedLogging,
                     subtitle: settings.enableLogging
-                        ? 'Detailed logs are being recorded'
-                        : 'Enable for bug reports',
+                        ? context.l10n.optionsDetailedLoggingOn
+                        : context.l10n.optionsDetailedLoggingOff,
                     value: settings.enableLogging,
                     onChanged: (v) =>
                         ref.read(settingsProvider.notifier).setEnableLogging(v),
@@ -285,14 +278,14 @@ class OptionsSettingsPage extends ConsumerWidget {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Clear History'),
-        content: const Text(
-          'Are you sure you want to clear all download history? This cannot be undone.',
+        title: Text(context.l10n.dialogClearHistoryTitle),
+        content: Text(
+          context.l10n.dialogClearHistoryMessage,
         ),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           TextButton(
             onPressed: () {
@@ -300,9 +293,9 @@ class OptionsSettingsPage extends ConsumerWidget {
               Navigator.pop(context);
               ScaffoldMessenger.of(
                 context,
-              ).showSnackBar(const SnackBar(content: Text('History cleared')));
+              ).showSnackBar(SnackBar(content: Text(context.l10n.snackbarHistoryCleared)));
             },
-            child: Text('Clear', style: TextStyle(color: colorScheme.error)),
+            child: Text(context.l10n.dialogClear, style: TextStyle(color: colorScheme.error)),
           ),
         ],
       ),
@@ -353,7 +346,7 @@ class OptionsSettingsPage extends ConsumerWidget {
                     ),
                   ),
                   Text(
-                    'Spotify Credentials',
+                    context.l10n.credentialsTitle,
                     style: Theme.of(context).textTheme.headlineSmall?.copyWith(
                       fontWeight: FontWeight.bold,
                     ),
@@ -361,7 +354,7 @@ class OptionsSettingsPage extends ConsumerWidget {
                   ),
                   const SizedBox(height: 8),
                   Text(
-                    'Enter your Client ID and Secret to use your own Spotify application quota.',
+                    context.l10n.credentialsDescription,
                     style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                       color: colorScheme.onSurfaceVariant,
                     ),
@@ -369,12 +362,11 @@ class OptionsSettingsPage extends ConsumerWidget {
                   ),
                   const SizedBox(height: 32),
 
-                  // Client ID
                   TextField(
                     controller: clientIdController,
                     decoration: InputDecoration(
-                      labelText: 'Client ID',
-                      hintText: 'Paste Client ID',
+                      labelText: context.l10n.credentialsClientId,
+                      hintText: context.l10n.credentialsClientIdHint,
                       filled: true,
                       fillColor: colorScheme.surfaceContainerHighest.withValues(
                         alpha: 0.3,
@@ -407,13 +399,12 @@ class OptionsSettingsPage extends ConsumerWidget {
                   ),
                   const SizedBox(height: 16),
 
-                  // Client Secret
                   TextField(
                     controller: clientSecretController,
                     obscureText: true,
                     decoration: InputDecoration(
-                      labelText: 'Client Secret',
-                      hintText: 'Paste Client Secret',
+                      labelText: context.l10n.credentialsClientSecret,
+                      hintText: context.l10n.credentialsClientSecretHint,
                       filled: true,
                       fillColor: colorScheme.surfaceContainerHighest.withValues(
                         alpha: 0.3,
@@ -458,12 +449,12 @@ class OptionsSettingsPage extends ConsumerWidget {
                             .setSpotifyCredentials(clientId, clientSecret);
                         Navigator.pop(context);
                         ScaffoldMessenger.of(context).showSnackBar(
-                          const SnackBar(content: Text('Credentials saved')),
+                          SnackBar(content: Text(context.l10n.snackbarCredentialsSaved)),
                         );
                       } else {
                         ScaffoldMessenger.of(context).showSnackBar(
-                          const SnackBar(
-                            content: Text('Please fill all fields'),
+                          SnackBar(
+                            content: Text(context.l10n.snackbarFillAllFields),
                           ),
                         );
                       }
@@ -474,9 +465,9 @@ class OptionsSettingsPage extends ConsumerWidget {
                         borderRadius: BorderRadius.circular(16),
                       ),
                     ),
-                    child: const Text(
-                      'Save Credentials',
-                      style: TextStyle(fontWeight: FontWeight.bold),
+                    child: Text(
+                      context.l10n.actionSaveCredentials,
+                      style: const TextStyle(fontWeight: FontWeight.bold),
                     ),
                   ),
 
@@ -489,14 +480,14 @@ class OptionsSettingsPage extends ConsumerWidget {
                             .clearSpotifyCredentials();
                         Navigator.pop(context);
                         ScaffoldMessenger.of(context).showSnackBar(
-                          const SnackBar(content: Text('Credentials cleared')),
+                          SnackBar(content: Text(context.l10n.snackbarCredentialsCleared)),
                         );
                       },
                       style: TextButton.styleFrom(
                         foregroundColor: colorScheme.error,
                         padding: const EdgeInsets.symmetric(vertical: 16),
                       ),
-                      child: const Text('Remove Credentials'),
+                      child: Text(context.l10n.actionRemoveCredentials),
                     ),
                   ],
 
@@ -540,14 +531,14 @@ class _ConcurrentDownloadsItem extends StatelessWidget {
                   crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
                     Text(
-                      'Concurrent Downloads',
+                      context.l10n.optionsConcurrentDownloads,
                       style: Theme.of(context).textTheme.bodyLarge,
                     ),
                     const SizedBox(height: 2),
                     Text(
                       currentValue == 1
-                          ? 'Sequential (1 at a time)'
-                          : '$currentValue parallel downloads',
+                          ? context.l10n.optionsConcurrentSequential
+                          : context.l10n.optionsConcurrentParallel(currentValue),
                       style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                         color: colorScheme.onSurfaceVariant,
                       ),
@@ -590,7 +581,7 @@ class _ConcurrentDownloadsItem extends StatelessWidget {
               const SizedBox(width: 8),
               Expanded(
                 child: Text(
-                  'Parallel downloads may trigger rate limiting',
+                  context.l10n.optionsConcurrentWarning,
                   style: Theme.of(
                     context,
                   ).textTheme.bodySmall?.copyWith(color: colorScheme.error),
@@ -682,14 +673,14 @@ class _UpdateChannelSelector extends StatelessWidget {
                   crossAxisAlignment: CrossAxisAlignment.start,
                   children: [
                     Text(
-                      'Update Channel',
+                      context.l10n.optionsUpdateChannel,
                       style: Theme.of(context).textTheme.bodyLarge,
                     ),
                     const SizedBox(height: 2),
                     Text(
                       currentChannel == 'preview'
-                          ? 'Get preview releases'
-                          : 'Stable releases only',
+                          ? context.l10n.optionsUpdateChannelPreview
+                          : context.l10n.optionsUpdateChannelStable,
                       style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                         color: colorScheme.onSurfaceVariant,
                       ),
@@ -703,13 +694,13 @@ class _UpdateChannelSelector extends StatelessWidget {
           Row(
             children: [
               _ChannelChip(
-                label: 'Stable',
+                label: context.l10n.channelStable,
                 isSelected: currentChannel == 'stable',
                 onTap: () => onChanged('stable'),
               ),
               const SizedBox(width: 8),
               _ChannelChip(
-                label: 'Preview',
+                label: context.l10n.channelPreview,
                 isSelected: currentChannel == 'preview',
                 onTap: () => onChanged('preview'),
               ),
@@ -726,7 +717,7 @@ class _UpdateChannelSelector extends StatelessWidget {
               const SizedBox(width: 8),
               Expanded(
                 child: Text(
-                  'Preview may contain bugs or incomplete features',
+                  context.l10n.optionsUpdateChannelWarning,
                   style: Theme.of(context).textTheme.bodySmall?.copyWith(
                     color: colorScheme.onSurfaceVariant,
                   ),
@@ -803,7 +794,6 @@ class _MetadataSourceSelector extends ConsumerWidget {
     final settings = ref.watch(settingsProvider);
     final extState = ref.watch(extensionProvider);
     
-    // Check if extension search provider is active AND enabled
     Extension? activeExtension;
     if (settings.searchProvider != null && settings.searchProvider!.isNotEmpty) {
       activeExtension = extState.extensions
@@ -823,7 +813,7 @@ class _MetadataSourceSelector extends ConsumerWidget {
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Text(
-            'Primary Provider',
+            context.l10n.optionsPrimaryProvider,
             style: Theme.of(
               context,
             ).textTheme.titleMedium?.copyWith(fontWeight: FontWeight.w500),
@@ -831,8 +821,8 @@ class _MetadataSourceSelector extends ConsumerWidget {
           const SizedBox(height: 4),
           Text(
             hasExtensionSearch
-                ? 'Using extension: $extensionName'
-                : 'Service used when searching by track name.',
+                ? context.l10n.optionsUsingExtension(extensionName!)
+                : context.l10n.optionsPrimaryProviderSubtitle,
             style: Theme.of(context).textTheme.bodyMedium?.copyWith(
               color: hasExtensionSearch 
                   ? colorScheme.primary 
@@ -845,12 +835,8 @@ class _MetadataSourceSelector extends ConsumerWidget {
               _SourceChip(
                 icon: Icons.graphic_eq,
                 label: 'Deezer',
-                badge: 'Free',
-                badgeColor: colorScheme.tertiary,
-                // Not selected if extension is active
                 isSelected: currentSource == 'deezer' && !hasExtensionSearch,
                 onTap: () {
-                  // If extension was active, reset it to default
                   if (hasExtensionSearch) {
                     ref.read(settingsProvider.notifier).setSearchProvider(null);
                   }
@@ -861,12 +847,8 @@ class _MetadataSourceSelector extends ConsumerWidget {
               _SourceChip(
                 icon: Icons.music_note,
                 label: 'Spotify',
-                badge: 'API Key',
-                badgeColor: colorScheme.secondary,
-                // Not selected if extension is active
                 isSelected: currentSource == 'spotify' && !hasExtensionSearch,
                 onTap: () {
-                  // If extension was active, reset it to default
                   if (hasExtensionSearch) {
                     ref.read(settingsProvider.notifier).setSearchProvider(null);
                   }
@@ -887,7 +869,7 @@ class _MetadataSourceSelector extends ConsumerWidget {
                 const SizedBox(width: 8),
                 Expanded(
                   child: Text(
-                    'Tap Deezer or Spotify to switch back from extension',
+                    context.l10n.optionsSwitchBack,
                     style: Theme.of(context).textTheme.bodySmall?.copyWith(
                       color: colorScheme.onSurfaceVariant,
                     ),
@@ -907,16 +889,12 @@ class _SourceChip extends StatelessWidget {
   final String label;
   final bool isSelected;
   final VoidCallback? onTap;
-  final String? badge;
-  final Color? badgeColor;
 
   const _SourceChip({
     required this.icon,
     required this.label,
     required this.isSelected,
     this.onTap,
-    this.badge,
-    this.badgeColor,
   });
 
   @override
@@ -962,24 +940,6 @@ class _SourceChip extends StatelessWidget {
                         : colorScheme.onSurfaceVariant,
                   ),
                 ),
-                if (badge != null) ...[
-                  const SizedBox(height: 4),
-                  Container(
-                    padding: const EdgeInsets.symmetric(horizontal: 6, vertical: 2),
-                    decoration: BoxDecoration(
-                      color: (badgeColor ?? colorScheme.tertiary).withValues(alpha: 0.2),
-                      borderRadius: BorderRadius.circular(4),
-                    ),
-                    child: Text(
-                      badge!,
-                      style: TextStyle(
-                        fontSize: 9,
-                        fontWeight: FontWeight.w500,
-                        color: badgeColor ?? colorScheme.tertiary,
-                      ),
-                    ),
-                  ),
-                ],
               ],
             ),
           ),

lib/screens/settings/provider_priority_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:spotiflac_android/l10n/l10n.dart';
 import 'package:spotiflac_android/providers/extension_provider.dart';
 
 class ProviderPriorityPage extends ConsumerStatefulWidget {
@@ -23,17 +24,13 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
     final extState = ref.read(extensionProvider);
     final allProviders = ref.read(extensionProvider.notifier).getAllDownloadProviders();
     
-    // Use saved priority if available, otherwise use default order
     if (extState.providerPriority.isNotEmpty) {
-      // Start with saved priority
       _providers = List.from(extState.providerPriority);
-      // Add any new providers not in saved priority
       for (final provider in allProviders) {
         if (!_providers.contains(provider)) {
           _providers.add(provider);
         }
       }
-      // Remove providers that no longer exist
       _providers.removeWhere((p) => !allProviders.contains(p));
     } else {
       _providers = allProviders;
@@ -57,7 +54,6 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
       child: Scaffold(
         body: CustomScrollView(
           slivers: [
-            // App Bar
             SliverAppBar(
               expandedHeight: 120 + topPadding,
               collapsedHeight: kToolbarHeight,
@@ -82,7 +78,7 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
                 if (_hasChanges)
                   TextButton(
                     onPressed: _saveChanges,
-                    child: const Text('Save'),
+                    child: Text(context.l10n.dialogSave),
                   ),
               ],
               flexibleSpace: LayoutBuilder(
@@ -97,7 +93,7 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
                     expandedTitleScale: 1.0,
                     titlePadding: EdgeInsets.only(left: leftPadding, bottom: 16),
                     title: Text(
-                      'Provider Priority',
+                      context.l10n.providerPriorityTitle,
                       style: TextStyle(
                         fontSize: 20 + (8 * expandRatio),
                         fontWeight: FontWeight.bold,
@@ -109,13 +105,11 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
               ),
             ),
 
-            // Description
             SliverToBoxAdapter(
               child: Padding(
                 padding: const EdgeInsets.all(16),
                 child: Text(
-                  'Drag to reorder download providers. The app will try providers '
-                  'from top to bottom when downloading tracks.',
+                  context.l10n.providerPriorityDescription,
                   style: Theme.of(context).textTheme.bodyMedium?.copyWith(
                     color: colorScheme.onSurfaceVariant,
                   ),
@@ -123,7 +117,6 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
               ),
             ),
 
-            // Provider list
             SliverPadding(
               padding: const EdgeInsets.symmetric(horizontal: 16),
               sliver: SliverReorderableList(
@@ -151,7 +144,6 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
               ),
             ),
 
-            // Info section
             SliverToBoxAdapter(
               child: Padding(
                 padding: const EdgeInsets.all(16),
@@ -167,8 +159,7 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
                       const SizedBox(width: 12),
                       Expanded(
                         child: Text(
-                          'If a track is not available on the first provider, '
-                          'the app will automatically try the next one.',
+                          context.l10n.providerPriorityInfo,
                           style: Theme.of(context).textTheme.bodySmall?.copyWith(
                             color: colorScheme.onTertiaryContainer,
                           ),
@@ -191,16 +182,16 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
     final result = await showDialog<bool>(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Discard Changes?'),
-        content: const Text('You have unsaved changes. Do you want to discard them?'),
+        title: Text(context.l10n.dialogDiscardChanges),
+        content: Text(context.l10n.dialogUnsavedChanges),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context, false),
-            child: const Text('Cancel'),
+            child: Text(context.l10n.dialogCancel),
           ),
           FilledButton(
             onPressed: () => Navigator.pop(context, true),
-            child: const Text('Discard'),
+            child: Text(context.l10n.dialogDiscard),
           ),
         ],
       ),
@@ -215,7 +206,7 @@ class _ProviderPriorityPageState extends ConsumerState<ProviderPriorityPage> {
     });
     if (mounted) {
       ScaffoldMessenger.of(context).showSnackBar(
-        const SnackBar(content: Text('Provider priority saved')),
+        SnackBar(content: Text(context.l10n.snackbarProviderPrioritySaved)),
       );
     }
   }
@@ -247,7 +238,6 @@ class _ProviderItem extends StatelessWidget {
           )
         : colorScheme.surfaceContainerHigh;
 
-    // Get provider info
     final info = _getProviderInfo(provider);
 
     return Padding(
@@ -261,7 +251,6 @@ class _ProviderItem extends StatelessWidget {
             padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
             child: Row(
               children: [
-                // Priority number
                 Container(
                   width: 28,
                   height: 28,
@@ -284,7 +273,6 @@ class _ProviderItem extends StatelessWidget {
                   ),
                 ),
                 const SizedBox(width: 16),
-                // Provider icon
                 Icon(
                   info.icon,
                   color: info.isBuiltIn
@@ -292,7 +280,6 @@ class _ProviderItem extends StatelessWidget {
                       : colorScheme.secondary,
                 ),
                 const SizedBox(width: 12),
-                // Provider name
                 Expanded(
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
@@ -304,7 +291,7 @@ class _ProviderItem extends StatelessWidget {
                         ),
                       ),
                       Text(
-                        info.isBuiltIn ? 'Built-in' : 'Extension',
+                        info.isBuiltIn ? context.l10n.providerBuiltIn : context.l10n.providerExtension,
                         style: Theme.of(context).textTheme.bodySmall?.copyWith(
                           color: colorScheme.onSurfaceVariant,
                         ),
@@ -312,7 +299,6 @@ class _ProviderItem extends StatelessWidget {
                     ],
                   ),
                 ),
-                // Drag handle
                 Icon(
                   Icons.drag_handle,
                   color: colorScheme.onSurfaceVariant,
@@ -346,7 +332,6 @@ class _ProviderItem extends StatelessWidget {
           isBuiltIn: true,
         );
       default:
-        // Extension provider
         return _ProviderInfo(
           name: provider,
           icon: Icons.extension,