fix(app): harden persistence, player performance, content extraction
- Fix chat persistence: unwrap Vue Proxy objects before IDB storage,
flush pending saves on page unload/visibility change, use immediate
saves for conversation creation and seed migration
- Fix player performance: parallel music search across providers,
server-side LRU cache, client-side result cache, audio element reuse,
instant UI feedback, abort stale searches, next-song prefetch
- Fix content extraction: strip recipe/event tags in stripContentTags,
extend cleanMagazineContent regex for all _ext patterns
- Fix PlayerBar: move to App.vue root to avoid stacking context clipping,
remove unused isDark conditionals (dark-only app)
- Add /seed command: loads 15 seed conversations from fixture index,
opens history panel, switches to first seed conversation
- Add seed prompt index: 15 realistic AI prompt/response pairs covering
films, songs, books, TV, places, podcasts, code, images, recipes, events
- Add seedExtraction.test.ts: 60 tests validating extraction counts,
tag stripping completeness, and data integrity
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
