feat(admin): 弹窗未保存内容保护与空状态引导扩展

- 新增 useDirtyGuard hook:关闭弹窗时若表单被修改,先确认再关闭
- 接入 17 个弹窗:账号/密码/档案、角色、教室、宿舍/床位/柜子、
  考勤机、机构、班级、教师、考试、排课、入住/退宿/换房、费用
  (子组件弹窗用 useEffect 在回填后快照,时序正确)
- 学生列表空状态带「添加学生」引导动作
- 排课创建成功提示「同步钉钉」,考试创建成功提示「去详情录成绩」

aislop scan: 5 引擎 0 issues

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

@@ -13,6 +13,7 @@ import PermissionButton from '../../components/PermissionButton';
 import { usePermission } from '../../hooks/usePermission';
 import { QueryErrorState } from '../../components/QueryState';
 import { useVisibleRefetch } from '../../hooks/usePageVisible';
+import { useDirtyGuard } from '../../hooks/useDirtyGuard';
 
 interface TeacherRow {
   id: number;
@@ -64,6 +65,7 @@ const TeachersPage: React.FC = () => {
   const [search, setSearch] = useState('');
   const [profileModal, setProfileModal] = useState<TeacherRow | null>(null);
   const [form] = Form.useForm<ProfileFormValues>();
+  const profileFormGuard = useDirtyGuard(form);
   const [saving, setSaving] = useState(false);
 
   const {
@@ -222,6 +224,7 @@ const TeachersPage: React.FC = () => {
                 joinedAt: r.profile?.joinedAt ? dayjs(r.profile.joinedAt) : null,
                 qualifications: r.profile?.qualifications || '',
               });
+              profileFormGuard.snapshot();
             }}
           >
             档案
@@ -229,7 +232,7 @@ const TeachersPage: React.FC = () => {
         ),
       },
     ],
-    [saveProfileCell, form],
+    [saveProfileCell, form, profileFormGuard],
   );
 
   return (
@@ -295,7 +298,7 @@ const TeachersPage: React.FC = () => {
         title={`编辑档案 — ${profileModal?.name || ''}`}
         open={!!profileModal && canEditTeachers}
         onOk={canEditTeachers ? handleSaveProfile : undefined}
-        onCancel={() => setProfileModal(null)}
+        onCancel={() => profileFormGuard.confirmClose(() => setProfileModal(null))}
         okText="保存"
         confirmLoading={saving}
       >