Fix all build/type/lint errors, write 46 new tests (222 total across 20 files), regenerate Prisma client, update seed with user preferences. Fix SvelteSet usage, add {#each} keys, clean unused imports.
- PWA: manifest, service worker (cache-first static, network-first API), offline page, install prompt banner - Auto-discovery: Docker socket + Traefik API scanning, approval UI - Quick-add bookmarklet: popup-based add page, favicon auto-detect - Multi-tab sync: BroadcastChannel for theme + data changes - i18n translations for all new strings (EN/RU)
alexei.dolgolyov