Document the on-disk media + direct-SQLite LibraryPath + scan recipe for
E2E, since a local library is not API-seedable. Capture two gotchas hit
while verifying the episode-nav PR: deleting search-index/ leaves search
permanently empty (migration doesn't reindex from DB; rescan skips
unchanged files), and /api/search needs field/wildcard queries
(title:Alpha), not bare title words.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>