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/AttendanceDevices.tsx

@@ -11,6 +11,7 @@ import PermissionButton from '../components/PermissionButton';
 import EditableCell from '../components/EditableCell';
 import { QueryErrorState } from '../components/QueryState';
 import { message } from '../ui/app-message';
+import { useDirtyGuard } from '../hooks/useDirtyGuard';
 
 interface ClassroomOption {
   id: number;
@@ -40,6 +41,7 @@ const AttendanceDevicesPage: React.FC = () => {
   const [saving, setSaving] = useState(false);
   const [keyword, setKeyword] = useState('');
   const [form] = Form.useForm();
+  const formGuard = useDirtyGuard(form);
 
   const {
     data: fetchResult = { devices: [], classrooms: [] },
@@ -107,6 +109,7 @@ const AttendanceDevicesPage: React.FC = () => {
     setEditing(null);
     form.resetFields();
     form.setFieldsValue({ status: 'active' });
+    formGuard.snapshot();
     setModalOpen(true);
   };
 
@@ -120,6 +123,7 @@ const AttendanceDevicesPage: React.FC = () => {
       location: record.location,
       notes: record.notes,
     });
+    formGuard.snapshot();
     setModalOpen(true);
   };
 
@@ -325,10 +329,12 @@ const AttendanceDevicesPage: React.FC = () => {
         title={editing ? '编辑考勤机绑定' : '添加考勤机绑定'}
         open={modalOpen}
         onOk={handleSave}
-        onCancel={() => {
-          setModalOpen(false);
-          setEditing(null);
-        }}
+        onCancel={() =>
+          formGuard.confirmClose(() => {
+            setModalOpen(false);
+            setEditing(null);
+          })
+        }
         confirmLoading={saving}
         okText="保存"
       >