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/Schedules/index.tsx

@@ -6,6 +6,7 @@ import dayjs, { Dayjs } from 'dayjs';
 import api from '../../api';
 import PermissionButton from '../../components/PermissionButton';
 import { QueryErrorState } from '../../components/QueryState';
+import { NextStepHint } from '../../components/NextStepHint';
 import { usePermission } from '../../hooks/usePermission';
 import { useVisibleRefetch } from '../../hooks/usePageVisible';
 import { message } from '../../ui/app-message';
@@ -61,6 +62,8 @@ const SchedulesPage: React.FC = () => {
   const [submitting, setSubmitting] = useState(false);
   const [syncModalOpen, setSyncModalOpen] = useState(false);
   const [syncing, setSyncing] = useState(false);
+  // 排课创建成功后的「下一步：同步钉钉」引导
+  const [syncHint, setSyncHint] = useState(false);
   const [syncStatus, setSyncStatus] = useState<{
     activeSchedules: number;
     mappedClasses: number;
@@ -108,8 +111,10 @@ const SchedulesPage: React.FC = () => {
         message.error(classification.message);
       } else if (classification.level === 'warning') {
         message.warning(classification.message);
+        setSyncHint(false);
       } else {
         message.success(classification.message);
+        setSyncHint(false);
       }
     } catch (e: unknown) {
       message.error(getErrorMessage(e, '同步失败'));
@@ -346,6 +351,7 @@ const SchedulesPage: React.FC = () => {
       message.success(
         modalMode === 'edit' ? '排课更新成功，请重新同步到钉钉排班' : '排课创建成功',
       );
+      if (modalMode === 'create') setSyncHint(true);
       setModalOpen(false);
       setEditingSchedule(null);
     } catch {
@@ -416,6 +422,14 @@ const SchedulesPage: React.FC = () => {
 
   return (
     <div>
+      {syncHint && (
+        <NextStepHint
+          title="排课已创建"
+          description="同步到钉钉后，教师端与考勤设备才能看到新排课。"
+          action={{ label: '同步钉钉', onClick: () => void handleSyncSchedule() }}
+          onClose={() => setSyncHint(false)}
+        />
+      )}
       <div
         style={{
           marginBottom: 16,