- Add multi-select support to library_tracks_folder_screen (wishlist, loved,
playlist) with long-press to enter selection mode, animated bottom bar with
batch remove/download/add-to-playlist actions, and PopScope exit handling
- Create batch showAddTracksToPlaylistSheet in playlist_picker_sheet with
playlist thumbnail widget and cover image support
- Add playlist grid selection tint overlay in queue_tab
- Optimize collection lookups with pre-built _allPlaylistTrackKeys index and
isTrackInAnyPlaylist/hasPlaylistTracks accessors
- Eagerly initialize localLibraryProvider and libraryCollectionsProvider
- Enable SQLite WAL mode and PRAGMA synchronous=NORMAL across all databases
- Go backend: duplicate SAF output FDs before provider attempts to prevent
fdsan abort on fallback retries; close detached FDs after download completes
- Go backend: rewrite compatibilityTransport to try HTTPS first and only
fallback to HTTP on transport-level failures, preventing redirect loops
- Go backend: enforce HTTPS-only for extension sandbox HTTP clients
- Replace batch Share action with batch Re-enrich in local album selection bar
- Full native/FFmpeg re-enrich flow with SAF write-back support
- Triggers incremental local library scan after completion to refresh metadata
- Queue tab: switch first selection action to Re-enrich when all selected items are local-only
- Refactor SAF FD handoff in MainActivity: drop detachFd/dup pattern, pass procfs
path to Go and let Go re-open it to avoid fdsan double-close race conditions
- Handle /proc/self/fd/ path in output_fd.go: re-open via O_WRONLY|O_TRUNC instead
of taking raw FD ownership
- Fix Ogg duration/bitrate calculation in audio_metadata.go:
- Use float64 arithmetic and math.Round for accurate duration
- Compute bitrate from file size / float duration at the source
- Validate Ogg page header fields (version, headerType, segment table) to avoid
false positives from payload bytes during backward scan
- Guard against corrupted granule values (>24h duration, <8kbps bitrate)
- Rename trackReEnrich label from 'Re-enrich Metadata' to 'Re-enrich' across all
13 locales and ARB files
- Update CHANGELOG.md with 3.7.0 entry
- Migrate MainActivity from FlutterActivity to FlutterFragmentActivity for SAF picker compatibility
- Add ImpellerAwareFlutterFragment to support Impeller fallback on legacy devices
- Add output_fd support in Go backend for direct file descriptor writes (SAF)
- Add helper functions in output_fd.go for FD-based file operations
- Refactor Tidal/Qobuz/Amazon downloaders to support FD output and skip metadata embedding for SAF (handled by Flutter)
- Add extractQobuzDownloadURLFromBody with unit tests for robust URL parsing
- Add storage mode picker (SAF vs App folder) in download settings for Android
- Fix FFmpeg output path building to avoid same-path conflicts
- Embed metadata to SAF FLAC files via temp file bridge in Flutter
- Upgrade Gradle wrapper to 9.3.1 and add activity-ktx dependency