- Expose RemoteMediaClient from useCasting for advanced operations
- Implement episode fetching from Jellyfin API for TV shows
- Add next episode detection with countdown UI showing episode name
- Wire audio/subtitle track changes to RemoteMediaClient.setActiveTrackIds
- Wire playback speed to RemoteMediaClient.setPlaybackRate
- Add tap-to-seek functionality to progress bar
- Update segment skip buttons to use remoteMediaClient seek wrapper
- Create comprehensive AirPlay implementation documentation
All casting system features are now complete before PR submission.
