On boot, the SettingsService computes a SHA-256 hash of the sorted
registered-provider IDs and compares to the hash stored on
cover_art_sources_meta. Mismatch → atomic bump of current_version +
update of stored hash. The next enrichment pass picks up the new
version, all 'none' rows become eligible, and they get retried
against the new chain (now including Deezer / Last.fm).
One-shot: subsequent boots without a provider-set change don't bump
again. The check is best-effort — failures are logged at Warn but
don't refuse startup; a temporarily unreachable DB at boot just
means 'none' rows stay parked until a manual re-search (next task).
Tests cover first-boot (empty stored hash → bump), repeat-boot
(no change → no bump), and the registered-providers-hash
determinism.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
bvandeusen
8f5ec4c304