Build offline playlists from any list, not just one-at-a-time from
VideoDetail.
* Long-press any video row → ModalBottomSheet with title/uploader
header + actions: Save to playlist, Share.
* Save reuses the existing playlist dialog (extracted out of
VideoDetailScreen into feature/playlist/VideoActions.kt and
promoted to public).
* Share fires a system ACTION_SEND with the YT URL.
* Wired across all 5 video-row sites: Search results, Subs feed,
History, Channel videos, Related/More-from-channel on
VideoDetail.
Deferred to next ship:
* "Play next" / "Add to queue" — needs Media3 queue substrate +
per-item streamInfo resolution path. Separate ticket; non-blocking
for the offline-playlist build flow Cobb asked for tonight.
Kayos
c3583457fb