docs: Report 404 for monitor (#40278)

* docs: monitor 404 report

* docs: Add source

* docs: patch

* docs: clean up

.dumi/pages/404/index.tsx

@@ -1,7 +1,7 @@
-import React, { useEffect } from 'react';
-import { Result, Button } from 'antd';
 import { HomeOutlined } from '@ant-design/icons';
+import { Button, Result } from 'antd';
 import { Link, useLocation } from 'dumi';
+import React, { useEffect } from 'react';
 import * as utils from '../../theme/utils';
 
 export interface NotFoundProps {
@@ -29,6 +29,15 @@ const NotFoundPage: React.FC<NotFoundProps> = ({ router }) => {
         router.replace(utils.getLocalizedPathname(`/${DIRECT_MAP[matchPath]}`, isZhCN).pathname);
       }
     }
+
+    // Report if necessary
+    const { yuyanMonitor } = window as any;
+    if (yuyanMonitor) {
+      yuyanMonitor.log({
+        code: 11,
+        msg: `Page not found: ${location.href}; Source: ${document.referrer}`,
+      });
+    }
   }, []);
 
   return (