Darktone

- Improved playback reliability: small initial buffer for fast start, automatic stall detection, buffer recovery and retry logic for stable cellular streaming
- Audio interruption handling: music pauses cleanly during calls/Siri and automatically resumes afterward
- Centralized ArtistResolver service: unified artist name resolution across Now Playing, Album Detail and Track Context Menu with caching
- More accurate song duration: AVPlayer duration is now always preferred over metadata
- Improved artist links in album and context menu views with correct navigation
- Visible back button in album, artist, playlist list and playlist detail views (subtle glass circle)
- Removed PreferPreciseDurationAndTimingKey from all stream URLs for faster playback start
- Fixed infinite retry loop: retry counter is no longer reset during retries
- Stall detection and buffer recovery now work correctly after crossfade transitions
- automaticallyWaitsToMinimizeStalling switches to true after 3 seconds for reliable mid-stream recovery
- Lyrics pre-buffering: lyrics are now fetched in parallel during audio prebuffering and cached — instantly available on song transitions and crossfade
- Fixed EQ race condition: equalizer now reliably activates on playback start, not only when opening the EQ settings page (KVO observer missed readyToPlay when item was already ready)