fix(admin): fix column widths and scroll.x for Attendance and Roles pages

- Attendance: remove ellipsis from 备注 column, scroll.x 1100 -> 1200
- Roles: adjust column widths (ID 60->80, 系统 70->80, 操作 160->180), remove ellipsis from 描述 and 权限标签
- Teachers: already correct (verified all widths match spec)
- Permissions: card-based layout, no Table component - no changes needed
- Notifications: List-based layout, no Table component - no changes needed

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

@@ -529,7 +529,6 @@ const AttendancePage: React.FC = () => {
         dataIndex: 'remark',
         key: 'remark',
         width: 150,
-        ellipsis: true,
         render: (v: string | null) => v || '-',
       },
       {
@@ -691,7 +690,7 @@ const AttendancePage: React.FC = () => {
                     columns={columns}
                     dataSource={records}
                     loading={loading}
-                    scroll={{ x: 1100 }}
+                    scroll={{ x: 1200 }}
                     pagination={{
                       current: page,
                       pageSize,

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

@@ -127,14 +127,13 @@ const RolesPage: React.FC = () => {
   };
 
   const columns = [
-    { title: 'ID', dataIndex: 'id', width: 60 },
+    { title: 'ID', dataIndex: 'id', width: 80 },
     { title: '名称', dataIndex: 'name', width: 120 },
-    { title: '描述', dataIndex: 'description', width: 200, ellipsis: true },
+    { title: '描述', dataIndex: 'description', width: 200 },
     {
       title: '权限标签',
       dataIndex: 'permissions',
       width: 150,
-      ellipsis: true,
       render: (perms: PermissionItem[]) =>
         perms?.length > 0 ? (
           <Tag color="blue">{perms.length} 个权限</Tag>
@@ -145,12 +144,12 @@ const RolesPage: React.FC = () => {
     {
       title: '系统',
       dataIndex: 'isSystem',
-      width: 70,
+      width: 80,
       render: (v: boolean) => (v ? <Tag color="orange">系统</Tag> : null),
     },
     {
       title: '操作',
-      width: 160,
+      width: 180,
       fixed: 'right' as const,
       render: (_: any, record: RoleItem) => (
         <Space>