refactor(rooms): remove dorm gender restrictions

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

@@ -159,10 +159,7 @@ const RoomsPage: React.FC = () => {
 
   const handleSave = async () => {
     const values = await form.validateFields();
-    const payload = {
-      ...values,
-      gender: values.gender === '__unset__' ? null : values.gender,
-    };
+    const payload = values;
     setSaving(true);
     try {
       if (editing) {
@@ -341,13 +338,6 @@ const RoomsPage: React.FC = () => {
           />
         ),
     },
-    {
-      title: '性别',
-      dataIndex: 'gender',
-      width: 80,
-      render: (v: string | null) =>
-        v ? <Tag color={v === '男' ? 'blue' : 'pink'}>{v}生宿舍</Tag> : '未指定',
-    },
     {
       title: '状态',
       dataIndex: 'status',
@@ -391,7 +381,7 @@ const RoomsPage: React.FC = () => {
                   onClick={() => {
                     const rec = record as { id: number };
                     setEditing(rec);
-                    form.setFieldsValue({ ...rec, gender: (record as any).gender ?? '__unset__' });
+                    form.setFieldsValue(rec);
                     setModalOpen(true);
                   }}
                 >
@@ -473,7 +463,6 @@ const RoomsPage: React.FC = () => {
             onClick={() => {
               setEditing(null);
               form.resetFields();
-              form.setFieldsValue({ gender: '__unset__' });
               setModalOpen(true);
             }}
           >
@@ -577,15 +566,6 @@ const RoomsPage: React.FC = () => {
               placeholder="留空自动解析"
             />
           </Form.Item>
-          <Form.Item name="gender" label="宿舍性别">
-            <Select
-              options={[
-                { value: '男', label: '男生宿舍' },
-                { value: '女', label: '女生宿舍' },
-                { value: '__unset__', label: '未指定（首位入住者确定）' },
-              ]}
-            />
-          </Form.Item>
           <Form.Item name="rentalCategory" label="租赁类别">
             <Select
               allowClear
@@ -632,7 +612,6 @@ const RoomsPage: React.FC = () => {
                   <div><strong>楼栋：</strong>{drawerRoom.building || '-'}</div>
                   <div><strong>楼层：</strong>{drawerRoom.floor ?? '-'}</div>
                   <div><strong>类型：</strong>{drawerRoom.roomType || '-'}</div>
-                  <div><strong>宿舍性别：</strong>{drawerRoom.gender ? `${drawerRoom.gender}生宿舍` : '未指定'}</div>
                   <div><strong>额定人数：</strong>{drawerRoom.capacity}</div>
                   <div><strong>租赁类别：</strong>{drawerRoom.rentalCategory === 'long' ? '长租' : '短租'}</div>
                   <div><strong>月租金：</strong>{drawerRoom.monthlyRate ? `¥${drawerRoom.monthlyRate}` : '-'}</div>