- Revert CacheFirst strategy back to NetworkFirst
- Add clear technical explanation in offline.html
- Explain that full offline mode requires no-auth or SPA
- Note that UI remains functional if app is already open
- Create offline.html with user-friendly offline message
- Auto-redirect when connection is restored
- Use offline.html as navigateFallback instead of root
- Include offline.html in PWA assets for precaching
This ensures users see a proper offline page when opening the app without connection, instead of a browser error.
