style(web): align antd theme with app palette

apps/web/src/main.tsx

@@ -1,6 +1,9 @@
 import { StrictMode } from 'react';
 import { createRoot } from 'react-dom/client';
+import ConfigProvider from 'antd/es/config-provider';
+import zhCN from 'antd/es/locale/zh_CN';
 import { App } from './App';
+import { gatewayAntdTheme } from './components/ui/antd-theme';
 import 'katex/dist/katex.min.css';
 import 'streamdown/styles.css';
 import 'antd/dist/reset.css';
@@ -8,6 +11,8 @@ import './styles.css';
 
 createRoot(document.getElementById('root')!).render(
   <StrictMode>
-    <App />
+    <ConfigProvider locale={zhCN} theme={gatewayAntdTheme}>
+      <App />
+    </ConfigProvider>
   </StrictMode>,
 );