Add Artists and Albums nav entries, rename root label from Library to
Home. Migrate all three ArtistRow call sites (search, search/artists,
library/liked) to ArtistCard with grid wrapper; delete ArtistRow
component and its test.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Implements Task 18: AlphabeticalGrid + ArtistCard infinite-scroll page
backed by createArtistsQuery('alpha'), with error, empty, and loading states.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds sort_name/cover_url to ArtistRef, sort_title to AlbumRef (matching
backend Task 5 wire shape), HomePayload type, and qk.home/albumsAlpha/
artistTracks query keys. Updates existing test fixtures to satisfy the
new required fields.
Verified clean via 'npm run check' (0 errors, only pre-existing warnings).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Each section is its own infinite query against /api/likes/{type}.
Empty sections show 'No liked X yet' (gated on total === 0). Reuses
ArtistRow / AlbumCard / TrackRow for rendering — same components as
the search overflow pages.