fix(admin): 补全 React hooks 依赖并修复页面稳定性

- 各页面 useCallback/useMemo 依赖补全（modal/mutation/setter 等），避免闭包过期
- ECharts 使用 optionRef、MainLayout 缓存菜单转换函数、main.tsx 增加挂载点校验
- 学生同步结果改用 recordsCount 展示

apps/admin/src/pages/Classrooms/index.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useMemo } from 'react';
+import React, { useState, useMemo, useCallback } from 'react';
 import { useQuery } from '@tanstack/react-query';
 import { useApiMutation } from '../../hooks/useApiMutation';
 import { validateResponse } from '../../utils/validate';
@@ -147,50 +147,63 @@ const ClassroomsPage: React.FC = () => {
     }
   };
 
-  const saveCell = async (record: any, field: string, value: unknown) => {
-    try {
-      await saveCellMutation.mutateAsync({ record, field, value });
-      message.success('已保存');
-    } catch {
-      // 错误提示由 useApiMutation 统一处理
-    }
-  };
+  const saveCell = useCallback(
+    async (record: any, field: string, value: unknown) => {
+      try {
+        await saveCellMutation.mutateAsync({ record, field, value });
+        message.success('已保存');
+      } catch {
+        // 错误提示由 useApiMutation 统一处理
+      }
+    },
+    [saveCellMutation],
+  );
 
-  const handleArchive = async (id: number) => {
-    try {
-      await archiveMutation.mutateAsync(id);
-      message.success('已归档');
-    } catch {
-      // 错误提示由 useApiMutation 统一处理
-    }
-  };
+  const handleArchive = useCallback(
+    async (id: number) => {
+      try {
+        await archiveMutation.mutateAsync(id);
+        message.success('已归档');
+      } catch {
+        // 错误提示由 useApiMutation 统一处理
+      }
+    },
+    [archiveMutation],
+  );
 
-  const handleRestore = async (id: number) => {
-    try {
-      await restoreMutation.mutateAsync(id);
-      message.success('已恢复');
-    } catch {
-      // 错误提示由 useApiMutation 统一处理
-    }
-  };
+  const handleRestore = useCallback(
+    async (id: number) => {
+      try {
+        await restoreMutation.mutateAsync(id);
+        message.success('已恢复');
+      } catch {
+        // 错误提示由 useApiMutation 统一处理
+      }
+    },
+    [restoreMutation],
+  );
 
-  const handlePurge = (id: number, name: string) => {
-    modal.confirm({
-      title: `永久删除教室「${name}」？`,
-      content: '删除后不可恢复，该教室及其排课、租赁、考勤机关联将被清除（存在关联数据时将无法删除）。确定继续？',
-      okText: '永久删除',
-      okButtonProps: { danger: true },
-      cancelText: '取消',
-      onOk: async () => {
-        try {
-          await purgeMutation.mutateAsync(id);
-          message.success('已永久删除（不可恢复）');
-        } catch {
-          // 错误提示由 useApiMutation 统一处理
-        }
-      },
-    });
-  };
+  const handlePurge = useCallback(
+    (id: number, name: string) => {
+      modal.confirm({
+        title: `永久删除教室「${name}」？`,
+        content:
+          '删除后不可恢复，该教室及其排课、租赁、考勤机关联将被清除（存在关联数据时将无法删除）。确定继续？',
+        okText: '永久删除',
+        okButtonProps: { danger: true },
+        cancelText: '取消',
+        onOk: async () => {
+          try {
+            await purgeMutation.mutateAsync(id);
+            message.success('已永久删除（不可恢复）');
+          } catch {
+            // 错误提示由 useApiMutation 统一处理
+          }
+        },
+      });
+    },
+    [modal, purgeMutation],
+  );
 
   const handleDownloadTemplate = () => {
     const baseURL = import.meta.env.PROD
@@ -397,7 +410,7 @@ const ClassroomsPage: React.FC = () => {
         ),
       },
     ],
-    [handlePurge, hasPermission],
+    [handlePurge, hasPermission, saveCell, handleArchive, handleRestore, form],
   );
 
   return (