- New Videos tab lists videos served by health-api (GET /v1/videos), with
thumbnails, duration/size, "Download for offline" into app-private storage
(progress bar, remove), and tap-to-play.
- Full-screen Media3/ExoPlayer: plays the local copy if downloaded, otherwise
streams /v1/videos/<file> with the existing sync bearer token (range requests).
- Activity handles rotation itself (configChanges) so playback survives it.
- Server side: health-api /v1/videos + video-add.sh (yt-dlp) — see README.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019pvxTrcfAiFZJcS7Jve2Au
