Replace manual state management with TanStack Query (React Query) for more robust server state handling. This refactoring introduces:
- New hooks for queries: useSessions, useSession, useMessages, useMachines
- New hooks for mutations: useSendMessage, useSessionActions, useSpawnSession
- Centralized query client with optimized configuration (5s staleTime, disabled window focus refetch)
- Query key factory for consistent cache invalidation
- Improved message synchronization via socket events with cache updates
- Optimistic updates for message sending with retry capability
- Simplified App.tsx by removing manual state management logic
- Integrated React Query devtools in development mode
This enables automatic cache management, better error handling, and a foundation for more sophisticated data fetching patterns.
Replaces react-shiki with a custom minimal Shiki highlighter to significantly reduce bundle size. Only loads 29 common languages and 2 themes (github-light/dark), using the JavaScript RegExp engine instead of WASM.
- Reduced web bundle from 5.8MB to 2.5MB (57% reduction)
- Saves 622KB by avoiding WASM runtime
- Graceful fallback for unsupported languages
- Removed react-shiki dependency
- Added @shikijs/langs, @shikijs/themes, shiki, hast-util-to-jsx-runtime
- Added light mode CSS rules for syntax highlighting
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