chore: update AGENTS guidance for frontend tooling (langgenius#29228)

Author: lyzno1

AGENTS.md

@@ -24,8 +24,8 @@ The codebase is split into:
 
 ```bash
 cd web
-pnpm lint
 pnpm lint:fix
+pnpm type-check:tsgo
 pnpm test
 ```
 
@@ -39,7 +39,7 @@ pnpm test
 ## Language Style
 
 - **Python**: Keep type hints on functions and attributes, and implement relevant special methods (e.g., `__repr__`, `__str__`).
-- **TypeScript**: Use the strict config, lean on ESLint + Prettier workflows, and avoid `any` types.
+- **TypeScript**: Use the strict config, rely on ESLint (`pnpm lint:fix` preferred) plus `pnpm type-check:tsgo`, and avoid `any` types.
 
 ## General Practices