Replaces the eager fan-out hydration from commit 040217ca (the
band-aid that fetched every missing ID in a 4-wide chunked loop
on refreshIndex) with the cleaner per-tile on-miss pattern:
* hydrateAlbums / hydrateArtists / hydrateTracks now call
metadataProvider.refreshAlbum/Artist/Track(id) for any ID the
cache doesn't have yet — same dedup as elsewhere, so multiple
Home re-collections / SSE index updates / Library cross-traffic
all share in-flight fetches.
* refreshIndex no longer launches a background hydration pass —
the Flow-side on-miss handles it declaratively as each tile
materialises.
* Removed @ApplicationScope, LibraryRepository, async/awaitAll,
coroutineScope, launch, HYDRATE_CONCURRENCY constant — all
dead now that the eager loop is gone.
Net: same user-visible behaviour (Rediscover populates) but the
plumbing is more honest, dedup'd across surfaces, and the
FreshnessSweeper keeps these rows fresh going forward.
Closes audit v3 #24.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
80b59aecf0