feat(admin): 管理端 UI/UX 深度优化——错误/加载/空状态、表单快捷键、移动端适配与无障碍

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

@@ -8,6 +8,7 @@ import { EditOutlined } from '@ant-design/icons';
 import dayjs from 'dayjs';
 import api from '../../api';
 import { message } from '../../ui/app-message';
+import { RefreshButton } from '../../components/RefreshButton';
 import EditableCell from '../../components/EditableCell';
 import PermissionButton from '../../components/PermissionButton';
 import { usePermission } from '../../hooks/usePermission';
@@ -211,6 +212,7 @@ const TeachersPage: React.FC = () => {
       {
         title: '操作',
         key: 'actions',
+        fixed: 'right' as const,
         width: 100,
         render: (_: unknown, r: TeacherRow) => (
           <PermissionButton
@@ -252,6 +254,7 @@ const TeachersPage: React.FC = () => {
           }}
           style={{ width: 220 }}
         />
+        <RefreshButton loading={isFetching} onRefresh={() => void refetch()} />
       </Space>
       {isError ? (
         <QueryErrorState