media_key was a lossy shortening of item_key (libraryId:lastSegment) that
introduced a real collision bug: two TV episodes from different series with
the same filename would share the same media_key and each other's tags.
- DB migration converts existing media_tags rows from short format to full
item_key by joining against media_items; ambiguous/orphaned rows are dropped
- media_tags column renamed media_key → item_key
- Removed itemKeyToMediaKey() from scanner; reconcileAndPrune now passes
item_key directly to reKeyMediaItem
- DB reader functions (tv, movies, games) now expose item_key on returned
entities; frontend components use entity.item_key instead of constructing
the short libraryId:id form
- MixedView now constructs the full mixed_file: item_key format
- Tag API renamed mediaKey param → itemKey throughout
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add prev/next arrow buttons and ArrowLeft/ArrowRight keyboard shortcuts to ImageLightbox and VideoPlayerModal
- Wire prev/next navigation in MixedView (through filtered media entries), TvView (through season episodes), and MoviesView/MovieDetailModal (through filtered movie list)
- Add new DoomScrollView component: fullscreen random-media mode with scroll/swipe/keyboard navigation, 100-item back-history, and per-library mute settings
- Add Doom Scroll button to mixed, movies, and TV library views
- Doom scroll respects active filters: mixed uses filtered entries, movies uses filtered movie list, TV fetches episodes from matching series only
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
