Tapping certain playlists showed 'That playlist no longer exists' because the server's BuildSystemPlaylists rotates system-playlist UUIDs every rebuild, and the LIST refresh only upserted -- stale UUIDs lingered in the cache, tapping them triggered a 404. Mirrors playlists_provider.dart: PlaylistsRepository.refreshList now deletes the user's cached rows not in the fresh owned set (catches both deleted user playlists AND old system UUIDs since system playlists are user-scoped) before upserting the fresh all, atomically via a new replaceList @Transaction on the DAO. Also deletes the cached row when refreshDetail 404s so a stale tap self-heals the list. Inject AuthController for the current user id.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen
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