Add complete PWA implementation including service worker registration,
offline support, and installation prompts:
- Add vite-plugin-pwa and workbox-window dependencies for PWA tooling
- Configure VitePWA plugin with web app manifest and app metadata
- Set up Workbox caching strategies for API endpoints and CDN assets
- Implement service worker auto-update with user-triggered refresh
- Create usePWAInstall hook to handle beforeinstallprompt events
- Create useOnlineStatus hook for monitoring network connectivity
- Add InstallPrompt component with haptic feedback integration
- Add OfflineBanner component to notify users of offline status
- Configure PWA icons and assets (64x64, 192x192, 512x512 variants)
- Add TypeScript type declarations for virtual PWA register module
- Integrate PWA components and service worker into App.tsx and main.tsx
- Add PWA meta tags and viewport configuration to index.html
Consolidate markdown rendering logic into dedicated assistant-ui components and update syntax highlighting to use Shiki with GitHub themes. Removes dependency on react-markdown and react-syntax-highlighter in favor of @assistant-ui/react-markdown with Shiki-based highlighting.
Extract word detection and suggestion logic into reusable utilities and hooks.
Add FloatingOverlay and Autocomplete components for intelligent input assistance.
Integrate settings panel and abort button directly into ChatInput component.
Simplify SessionHeader by removing settings dialog (now in ChatInput).
weishu