- Add web app manifest with app metadata and shortcuts
- Add service worker with network-first, cache-first, and network-only strategies
- Add offline fallback page with auto-reload on reconnection
- Add SVG placeholder icon for PWA
- Add PWA meta tags for iOS, Android, and Windows support
- Add comprehensive PWA guide documentation (docs/PWA_GUIDE.md)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
