Extract AppContentRepository interface from MediaRepository for home/library-specific features.
CompositeMediaRepository delegates to OfflineMediaRepository or AppContentRepository based on
UserSessionRepository.isOfflineMode, allowing content ViewModels to use a single MediaRepository
interface that automatically switches data source.
- Add PlayerRoute to the Route sealed interface
- Refactor PlayerViewModel to expose loadMedia() for external callers
- Add onPlay() to EpisodeScreenViewModel and MovieScreenViewModel
- Wire play/resume buttons in TV episode and movie screens
- Create TvPlayerScreen with TV-optimized controls: seek bar, playback
buttons, track selection panels, queue panel, and state cards
- Register PlayerRoute in TvRouteEntryBuilder and TvNavigationModule
- Add media3-ui dependency to app-tv module
