- Fix duplicate Telegram notifications: SyncArtistDiscography no longer wipes
notifications_sent for the whole artist on every cache-miss re-sync; only
markers for releases that disappear are pruned (FK-safe via INSERT OR REPLACE
+ rgid NOT IN (...)).
- Cache empty MusicBrainz discographies via a new artist_settings.last_synced
column (migration 009) so zero-release artists honor the TTL instead of being
re-fetched every cycle.
- Wire the Web UI server and Telegram notifier scheduler into main.run/NewApp.
- Guard startPeriodicSync against overlapping syncs with a done-channel slot.
- Add server.public_url config; NewServerWithConfig derives reachable links
and no longer advertises the 0.0.0.0 bind address.
- Web handlers: use scanner.ScanArtist per artist, drop always-false
releaseIgnored lookup and dead endsWith, thread configured threshold.
- Limit :memory: DB pool to one connection so migrations and queries share the
same in-memory store.
Replace compute-only run() with an immediate sync+scan followed by a
ticker-driven periodic loop, add the sync.interval config field (default
6h) with defaults and validation, and add tests for the scheduling logic.
- Add CacheTTL default (24h) in config applyDefaults — without this,
omitting cache_ttl from config silently defeats the entire caching
mechanism (TTL=0 means cached data is never served)
- Fix pagination to use total Count instead of checking if last page
was short — avoids wasting a rate-limit token when total count is
an exact multiple of 100
- Preserve user-set IsIgnored flags across re-syncs — previously,
DELETE+INSERT in the sync transaction reset all ignore flags to
false, losing user preferences on every cache-expiry re-sync
- Check context cancellation on cache-hit code path — previously,
ctx.Err() was not checked between cache check and returning cached
data, violating the cancellation contract
