Follow-up to slice 3: a read-only artist preview page keyed by MBID, reachable from
suggested artists, suggested albums, and Find-similar results. Shows discography,
lazy per-album tracklists, own-state badges; Follow (reuse /api/artists) + Want
(new /api/discover/want upsert). Web-side MB reads only, no worker changes.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jonathan