Sibling to /api/home that returns the same five sections (recently
added, rediscover albums, rediscover artists, most played, last
played) but as flat slices of entity ID strings instead of
denormalized objects. The Flutter client uses this to drive its
per-item rendering pass — small discovery response then per-tile
hydration via the existing /api/albums/:id, /api/artists/:id,
/api/tracks/:id endpoints.
Reuses recommendation.HomeData so the DB cost is identical to
/api/home. JSON payload shrinks roughly an order of magnitude on
populated libraries (no embedded title / artist / cover URL fields).
Old /api/home stays untouched so the web client and older Flutter
builds keep working — no min-client-version bump needed until both
clients have migrated.
Wires recommendation.HomeData into handleGetHome; maps dbq row types to
the five HomePayload wire-type slices (AlbumRef/ArtistRef/TrackRef).
All slices are non-nil so the SPA never receives JSON null for empty sections.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
bvandeusen