Replace the labelled availability/metadata badges in track rows with
small icon+tooltip indicators (cloud/hard-drives/warning/etc, derived
from TrackAvailability and MetadataStatus).
Add a `connection` slice fed by a single status poller (Sidebar) so
other components can cheaply check backend reachability. TrackRow uses
this plus the offline audio cache to show "Local" instead of a stale
"On server" when the backend is down but the track is already cached.
Album detail header falls back to a track's cover when the album
record itself has none, and each track row hides its per-track art in
favour of a large album-position number, since the header already
shows the album's cover once.
Overlay the accent-coloured "hopping bars" PlayingIndicator on a
track's cover art wherever TrackRow appears when it's the active
player track, and reuse the same component/overlay for the current
entry's cover in the queue panel.
Add a play overlay button shown on cover art hover that inserts the
track into the queue right after the current track and jumps to it,
so it takes priority over what's already queued. Replaces the
double-click-to-play interaction with a new playNow queue action.
The mapper dropped metadata_status and hardcoded availability, so enrichment
state was invisible and a just-uploaded track never appeared to change. Map
metadata_status/metadata_error/has_cover onto Track; add MetadataStatusBadge
(pending spinner / enriched / failed-with-reason / manual) shown in TrackRow,
and serve token-bearing track covers via getTrackCoverUrl.
UploadPage now polls each uploaded track (stops once enrichment settles) so the
resolved title/artist — or a failure reason — appears live. i18n in en + ru.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>