Go backend:
- Add sensitive data redaction in log buffer (tokens, keys, passwords)
- Validate extension auth URLs (HTTPS only, no private IPs, no embedded creds)
- Block embedded credentials in extension HTTP requests
- Tighten extension storage file permissions (0644 -> 0600)
- Sanitize extension ID in store download path
- Summarize auth URLs in logs to prevent token leakage
Android (Kotlin):
- Add sanitizeRelativeDir to prevent path traversal in SAF operations
- Apply sanitizeFilename to all user-provided file names in SAF
Flutter:
- Add sensitive data redaction in Dart logger (mirrors Go patterns)
- Mask device ID in log exports
- Add in-flight guard to progress polling (download queue + local library)
- Remove redundant _downloadedSpotifyIds Set, use _bySpotifyId map
- Remove redundant _isrcSet, use _byIsrc map
- Expand DownloadQueueLookup with byItemId and itemIds
- Lazy search index building in queue tab
- Bound embedded cover cache in queue tab (max 180)
- Coalesce embedded cover refresh callbacks via postFrameCallback
- Cache album track filtering in downloaded album screen
- Cache thumbnail sizes by extension ID in home tab
- Simplify recent access aggregation (single-pass)
- Remove unused _isTyping state in home tab
- Cap pre-warm track batch size to 80
- Skip setShowingRecentAccess if value unchanged
- Use downloadQueueLookupProvider for granular queue selectors
- Move grouped album filtering before content data computation
- Cover preview enlarged from 120x120 to 160x160 with shadow and better styling
- Layout changed from Wrap to Row with Expanded for side-by-side covers
- Label moved below image with labelMedium typography
- Cover editor section moved to top of edit form
- Added embedded cover preview cache with LRU eviction in metadata screen
- Added current cover extraction and preview in edit metadata sheet
- Added metadata sync to download history after edits
- Added embedded cover extraction cache in queue tab for downloaded items
- Added SAF mod-time tracking for cover refresh after metadata changes
- New YouTube download provider with Opus 256kbps and MP3 320kbps options
- SongLink/Odesli integration for Spotify/Deezer ID to YouTube URL conversion
- YouTube video ID detection for YT Music extension compatibility
- Parallel cover art and lyrics fetching during download
- Queue progress shows bytes (X.X MB) for streaming downloads
- Full metadata embedding: cover, lyrics, title, artist, album, track#, disc#, year, ISRC
- Removed Tidal HIGH (lossy AAC) option - use YouTube for lossy instead
- Bumped version to 3.6.0
- Add responsive scaling across album, artist, playlist, downloaded album, local album, queue, setup, and tutorial screens to prevent overflow on smaller devices
- Add new Storage & Cache management page (Settings > Storage & Cache) with per-category clear and cleanup actions
- Extract normalizedHeaderTopPadding utility for consistent app bar padding
- Improve home search Recent Access behavior: show when focused with empty input, hide stale results during active recent mode
- Add excluded-downloaded-count tracking to local library scan stats
- Add recentEmpty and recentShowAllDownloads l10n keys (EN + ID)
- Add full cache management l10n keys (EN + ID)
- Fix about_page indentation and formatting consistency
- Fix appearance_settings_page formatting
- Fix downloaded_album_screen and local_album_screen formatting and responsive sizing
- Scope settingsProvider watches with select() for localLibrary flags
- Wrap popular track items in Consumer for scoped provider watches
- Apply dart format reformatting
- Use ValueNotifier+ValueListenableBuilder for file existence checks instead of setState
- Scope Riverpod watches with field-level select() to reduce unnecessary rebuilds
- Pass precomputed params to _TrackItemWithStatus to avoid per-item provider watches
- Memoize filter/sort computations per build pass
- Isolate queue header/list into dedicated Consumer slivers
- Fix Positioned/ValueListenableBuilder nesting order in grid view
- Remove redundant manual export button from queue header
- Add date range filtering support for local library items
- Apply advanced filters (date, quality, format, source) to album tab
- Tab chip counts (All/Albums/Singles) now reflect filtered results
- Extract reusable filter helpers: _passesDateFilter, _passesQualityFilter, _passesFormatFilter
- Add _filterGroupedAlbums and _filterGroupedLocalAlbums methods
