fix(epg): remove cached XMLTV data after source deletion (#1548)

* fix(epg): remove cached XMLTV data after source deletion

* fix(epg): close source reconciliation review races

* fix(epg): serialize cleanup with replacement imports

* fix(epg): report retired worker exits as cancellations

* fix(epg): preserve source metadata through cache cleanup

* refactor(epg): separate worker runtime and import lifecycle

* fix(epg): skip cleanup for unchanged source settings

* fix(epg): cancel retired error rows and pending retries

* fix(epg): redact diagnostics and mirror committed settings after cleanup errors

* fix(epg): preserve metadata writer order independently of timestamps

tools/eslint/max-lines-baseline.mjs

@@ -13,7 +13,6 @@ export const maxLinesBaseline = [
     'apps/electron-backend/src/app/database/operations/content.operations.ts',
     'apps/electron-backend/src/app/database/operations/playlist.operations.ts',
     'apps/electron-backend/src/app/events/epg-query.service.ts',
-    'apps/electron-backend/src/app/events/epg-worker.service.ts',
     'apps/electron-backend/src/app/events/mpv-session.service.ts',
     'apps/electron-backend/src/app/events/vlc-session.service.ts',
     'apps/electron-backend/src/app/services/app-update.service.ts',