Composes the prior commits (player APIs, mutation kinds, repository
methods, sub-sheets) into the 7-item TrackActions sheet and its
kebab trigger. TrackActionsViewModel owns state observations + action
callbacks + transient snackbar messages. AlbumDetail track rows get
the kebab next to LikeButton; the screen-level Scaffold gains a
SnackbarHost that surfaces queue/playlist/error messages.
Hidden-state observation holds its own Set<String> snapshot since
QuarantineRepository doesn't expose a Flow surface yet; refreshes
on init and after every flag/unflag.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
d0ff607994