修复数据库连接错误，用户组功能待测试

src/pages/admin/ExamTaskPage.tsx

@@ -76,8 +76,8 @@ const ExamTaskPage = () => {
   }, []);
 
   // Watch form values for real-time calculation
-  const selectedUserIds = Form.useWatch('userIds', form) || [];
-  const selectedGroupIds = Form.useWatch('groupIds', form) || [];
+  const selectedUserIds = Form.useWatch<string[]>('userIds', form) || [];
+  const selectedGroupIds = Form.useWatch<string[]>('groupIds', form) || [];
 
   // Fetch members when groups are selected
   useEffect(() => {

src/pages/admin/QuestionManagePage.tsx

@@ -86,7 +86,7 @@ const QuestionManagePage = () => {
       setQuestions(response.data);
       setPagination(prev => ({
         ...prev,
-        total: (response as any).pagination.total
+        total: (response as any).pagination?.total || response.data.length
       }));
       
       // 提取并更新可用的题型和类别列表
@@ -311,6 +311,7 @@ const QuestionManagePage = () => {
           'Authorization': localStorage.getItem('survey_admin') ? `Bearer ${JSON.parse(localStorage.getItem('survey_admin') || '{}').token}` : '',
           'Content-Type': 'application/json',
         },
+        credentials: 'include',
       });
       
       if (!response.ok) {

src/pages/admin/UserGroupManage.tsx

@@ -24,7 +24,7 @@ const UserGroupManage = () => {
     setLoading(true);
     try {
       const res = await userGroupAPI.getAll();
-      setGroups(res);
+      setGroups(res.data);
     } catch (error) {
       message.error('获取用户组列表失败');
     } finally {

src/pages/admin/UserManagePage.tsx

@@ -72,7 +72,7 @@ const UserManagePage = () => {
       setPagination({
         current: page,
         pageSize,
-        total: res.pagination?.total || res.data.length,
+        total: (res as any).pagination?.total || res.data.length,
       });
     } catch (error) {
       message.error('获取用户列表失败');
@@ -85,7 +85,7 @@ const UserManagePage = () => {
   const fetchUserGroups = async () => {
     try {
       const res = await userGroupAPI.getAll();
-      setUserGroups(res);
+      setUserGroups(res.data);
     } catch (error) {
       console.error('获取用户组失败');
     }
@@ -233,7 +233,7 @@ const UserManagePage = () => {
       setRecordsPagination({
         current: page,
         pageSize,
-        total: res.pagination?.total || res.data.length,
+        total: (res as any).pagination?.total || res.data.length,
       });
     } catch (error) {
       message.error('获取答题记录失败');