spotiflacapp/SpotiFLAC-Mobile v3.1.1 on GitHub

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

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