feat: DingTalk attendance import + integration config + expense types + UI polish

Server:
- Add DingTalk attendance import service with SSE progress streaming
- Add IntegrationConfig entity & module for multi-tenant DingTalk setup
- Add ExpenseType entity & ExpenseTypesModule
- Add SeedModule for DB initialization
- Add UserDingMapping entity for DingTalk user linkage
- Attendance service: import flow with dedup & student auto-mapping
- Rooms service: time-range overlap queries
- Sync controller/service: DingTalk integration wiring
- Permission guard: refactor to pure re-export
- Campus scope middleware: tenant-aware filtering

Admin UI:
- Attendance page: import UI with progress & result summary
- All pages: tableStyle/tablePagination standardization
- Login page: responsive styling
- Sensitive data: useViewSensitive hook for masked viewing
- Vite config: path aliases, build optimization
- Test infra: vitest config, test utilities

Docs: PRD DingTalk batch 1 & 2 design docs

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

@@ -55,6 +55,8 @@ const ClassroomsPage: React.FC = () => {
   const [searchText, setSearchText] = useState('');
   const [filterStatus, setFilterStatus] = useState<string | undefined>(undefined);
 
+  const [saving, setSaving] = useState(false);
+
   const filteredData = useMemo(() => {
     let result = data;
     if (searchText) { const s = searchText.toLowerCase(); result = result.filter((d: Record<string, unknown>) => (typeof d.name === 'string' && d.name.toLowerCase().includes(s)) || (typeof d.building === 'string' && d.building.toLowerCase().includes(s))); }
@@ -79,6 +81,7 @@ const ClassroomsPage: React.FC = () => {
 
   const handleSave = async () => {
     const values = await form.validateFields();
+    setSaving(true);
     try {
       if (editing) {
         await api.put(`/classrooms/${editing.id}`, values);
@@ -93,6 +96,8 @@ const ClassroomsPage: React.FC = () => {
       fetchData();
     } catch (e: any) {
       message.error(e?.message || '操作失败');
+    } finally {
+      setSaving(false);
     }
   };
 
@@ -134,7 +139,7 @@ const ClassroomsPage: React.FC = () => {
       .catch(() => message.error('下载失败'));
   };
 
-  const columns = [
+  const columns = useMemo(() => [
     {
       title: '教室名', width: 120,
       dataIndex: 'name',
@@ -201,7 +206,7 @@ const ClassroomsPage: React.FC = () => {
         </Space>
       ),
     },
-  ];
+  ], []);
 
   return (
     <div>
@@ -293,6 +298,7 @@ const ClassroomsPage: React.FC = () => {
           setModalOpen(false);
           setEditing(null);
         }}
+        confirmLoading={saving}
         okText="保存"
       >
         <Form form={form} layout="vertical">