The global favorites reorder wrote the new position filtering only by
content_id, so two Xtream playlists holding a favorite with the same
content_id would clobber each other's persisted order (greptile P1).
Thread playlist_id through the whole reorder path — the renderer builder
(UnifiedCollectionItem already carries playlistId), the IPC contract
(ElectronBridgeFavoriteReorderUpdate + inline payload types), the worker
op — and scope the prepared UPDATE by (contentId, playlistId), matching
the favorites composite unique index.
Tests: favorites.operations.spec asserts the playlistId placeholder and
per-row playlistId payload; preload contract fixture updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- merge origin/master into PR #964 and keep embedded MPV test on the isolated playback sub-entrypoint
- centralize EPG capability through DataService.supportsEpg and update PWA web-e2e expectations
- split BrowserAccessError copy between Electron and PWA diagnostics
