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/ClassroomRentals/index.tsx

@@ -18,6 +18,7 @@ import {
 import { PlusOutlined, UploadOutlined, DeleteOutlined, FileTextOutlined } from '@ant-design/icons';
 import dayjs, { Dayjs } from 'dayjs';
 import api from '../../api';
+import { downloadBlob } from '../../utils/download';
 import PermissionButton from '../../components/PermissionButton';
 
 const ClassroomRentalsPage: React.FC = () => {
@@ -30,6 +31,7 @@ const ClassroomRentalsPage: React.FC = () => {
   const [form] = Form.useForm();
   const [filterMonth, setFilterMonth] = useState<Dayjs | null>(null);
   const [searchText, setSearchText] = useState('');
+  const [saving, setSaving] = useState(false);
 
   const filteredData = useMemo(() => {
     if (!searchText) return data;
@@ -73,6 +75,7 @@ const ClassroomRentalsPage: React.FC = () => {
 
   const handleSave = async () => {
     const values = await form.validateFields();
+    setSaving(true);
     const payload = {
       classroomId: values.classroomId,
       tenantId: values.tenantId,
@@ -103,6 +106,8 @@ const ClassroomRentalsPage: React.FC = () => {
       } else {
         message.error(e?.message || '操作失败');
       }
+    } finally {
+      setSaving(false);
     }
   };
 
@@ -116,27 +121,15 @@ const ClassroomRentalsPage: React.FC = () => {
     }
   };
 
-  const handleDownloadContract = (id: number, filename?: string) => {
-    const baseURL = import.meta.env.PROD
-      ? '/api'
-      : `http://localhost:${import.meta.env.VITE_API_PORT || 3002}/api`;
-    const token = localStorage.getItem('token');
-    fetch(`${baseURL}/classroom-rentals/${id}/contract`, {
-      headers: { Authorization: `Bearer ${token}` },
-    })
-      .then((res) => {
-        if (!res.ok) throw new Error('下载失败');
-        return res.blob();
-      })
-      .then((blob) => {
-        const url = URL.createObjectURL(blob);
-        const a = document.createElement('a');
-        a.href = url;
-        a.download = filename || `contract-${id}.pdf`;
-        a.click();
-        URL.revokeObjectURL(url);
-      })
-      .catch(() => message.error('下载失败（可能文件已丢失）'));
+  const handleDownloadContract = async (id: number, filename?: string) => {
+    try {
+      await downloadBlob(
+        `/classroom-rentals/${id}/contract`,
+        filename || `contract-${id}.pdf`,
+      );
+    } catch {
+      message.error('下载失败（可能文件已丢失）');
+    }
   };
 
   const handleDeleteContract = async (id: number) => {
@@ -162,7 +155,7 @@ const ClassroomRentalsPage: React.FC = () => {
     setModalOpen(true);
   };
 
-  const columns = [
+  const columns = useMemo(() => [
     {
       title: '教室', width: 120,
       dataIndex: 'classroom',
@@ -215,7 +208,7 @@ const ClassroomRentalsPage: React.FC = () => {
               </Button>
             </Tooltip>
             <Popconfirm title="删除合同文件？" onConfirm={() => handleDeleteContract(r.id)}>
-              <Button size="small" danger icon={<DeleteOutlined />} />
+              <Button size="small" danger icon={<DeleteOutlined />} aria-label="删除合同文件" />
             </Popconfirm>
           </Space>
         ) : (
@@ -268,7 +261,7 @@ const ClassroomRentalsPage: React.FC = () => {
         </Space>
       ),
     },
-  ];
+  ], []);
 
   return (
     <div>
@@ -330,6 +323,7 @@ const ClassroomRentalsPage: React.FC = () => {
           setModalOpen(false);
           setEditing(null);
         }}
+        confirmLoading={saving}
         okText="保存"
         width={600}
       >