feat(dc): Complete Tool C quick action buttons Phase 1-2 - 7 functions

Summary:
- Implement 7 quick action functions (filter, recode, binning, conditional, dropna, compute, pivot)
- Refactor to pre-written Python functions architecture (stable and secure)
- Add 7 Python operations modules with full type hints
- Add 7 frontend Dialog components with user-friendly UI
- Fix NaN serialization issues and auto type conversion
- Update all related documentation

Technical Details:
- Python: operations/ module (filter.py, recode.py, binning.py, conditional.py, dropna.py, compute.py, pivot.py)
- Backend: QuickActionService.ts with 7 execute methods
- Frontend: 7 Dialog components with complete validation
- Toolbar: Enable 7 quick action buttons

Status: Phase 1-2 completed, basic testing passed, ready for further testing

frontend-v2/src/main.tsx

@@ -1,6 +1,6 @@
 import React from 'react'
 import ReactDOM from 'react-dom/client'
-import { ConfigProvider } from 'antd'
+import { ConfigProvider, App as AntdApp } from 'antd'
 import zhCN from 'antd/locale/zh_CN'
 import App from './App.tsx'
 import './index.css'
@@ -18,7 +18,10 @@ ReactDOM.createRoot(document.getElementById('root')!).render(
         },
       }}
     >
-      <App />
+      {/* ✅ 修复：使用 App 组件包裹，支持静态 message 方法消费 context */}
+      <AntdApp>
+        <App />
+      </AntdApp>
     </ConfigProvider>
   </React.StrictMode>,
 )