- Add web-read-progress Gen-UI card for real-time web reading feedback - Searcher tool-executor pushes loading→complete cards during web_read - ToolCallStatus supports expanding during loading state - Switch from langgraphjs dev to production mode (server.ts) - Add Hono middleware to strip sensitive request headers - Bundle splitting via Vite manualChunks (1.85MB → 8 chunks) - SPA fallback via staticwebapp.config.json - Agent model configs updated (sonnet 1M → standard sonnet) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>