- Created service worker (public/sw.js) with caching strategies
- Cache-first strategy for static assets
- Stale-while-revalidate for API responses and pages
- Network-first fallback strategy
- Implemented offline fallback page (/offline)
- Updated manifest.json with complete PWA metadata
- Added service worker registration in app layout
- Created ServiceWorkerRegistration component for client-side registration
- Generated SVG icons for PWA (192x192 and 512x512)
- Added PWA meta tags for iOS Safari support
Validates Requirements: 4.1, 4.3, 4.4
