PWA Features Implemented: ✅ Offline Fallback Page (/offline) - User-friendly offline page with connection status - Auto-redirect when back online - Lists available offline features - Retry and home navigation buttons ✅ Install Prompt UI (InstallPrompt component) - beforeinstallprompt event handler for Android/Desktop - iOS-specific install instructions with Share icon - Smart dismissal with 7-day cooldown - Already-installed detection ✅ Background Sync for Pending Actions - useBackgroundSync hook with multiple sync triggers - Periodic sync every 5 minutes when online - Sync on tab visibility change - Service Worker sync registration - BackgroundSyncProvider integration ✅ next-pwa Configuration Updates - Offline fallback to /offline page - Network timeout (10s) for better offline detection - skipWaiting and clientsClaim enabled - Runtime caching with NetworkFirst strategy Files Created: - app/offline/page.tsx (131 lines) - components/pwa/InstallPrompt.tsx (164 lines) - hooks/useBackgroundSync.ts (71 lines) - components/providers/BackgroundSyncProvider.tsx (10 lines) Files Modified: - app/layout.tsx (added InstallPrompt and BackgroundSyncProvider) - next.config.mjs (offline fallback + workbox options) Total: 376 new lines across 4 new files + 2 modified files 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>