* refactor: remove SourcedTrack based audio player and utilize mediakit playback system
* feat: implement local (loopback) server to resolve stream source and leverage the media_kit playback API
* feat: add source change support and re-add prefetching tracks
* fix: assign lastId when track fetch completes regardless of error
* chore: remove print statements
* fix: remote queue not working
* fix: increase mpv network timeout to reduce auto-skipping
* fix: do not pre-fetch local tracks
* fix(proxy-playlist): reset collections on load
* chore: fix lint warnings
* fix(mobile): player overlay should not be visible when the player is not playing
* chore: fix typo in turkish translation
* cd: checkout PR branch
* cd: upgrade flutter version
* chore: fix lint errors
