fix: keep tenant settings form mounted

frontend/src/app/tenant-settings/page.tsx

@@ -124,18 +124,18 @@ export default function TenantSettingsPage() {
         </section>
 
         <div className="chat-layout-grid chat-layout-grid-history">
-          <Card className="review-surface-card" title="基础信息" loading={loading}>
+          <Card className="review-surface-card" title="基础信息">
             <Form form={form} layout="vertical" onFinish={handleSubmit}>
               <Form.Item label="租户名称" name="name" rules={[{ required: true, message: "请输入租户名称" }]}>
-                <Input placeholder="例如：演示企业" />
+                <Input disabled={loading} placeholder="例如：演示企业" />
               </Form.Item>
               <Form.Item label="租户编码" name="code" rules={[{ required: true, message: "请输入租户编码" }]}>
-                <Input placeholder="例如：demo" />
+                <Input disabled={loading} placeholder="例如：demo" />
               </Form.Item>
               <Form.Item label="租户状态" name="status" rules={[{ required: true, message: "请选择租户状态" }]}>
-                <Select options={statusOptions} />
+                <Select disabled={loading} options={statusOptions} />
               </Form.Item>
-              <Button type="primary" htmlType="submit" loading={submitting}>
+              <Button type="primary" htmlType="submit" loading={loading || submitting}>
                 保存设置
               </Button>
             </Form>