Add /site API (#19631)

web/app/components/develop/template/template_chat.zh.mdx

@@ -1332,3 +1332,63 @@ import { Row, Col, Properties, Property, Heading, SubProperty } from '../md.tsx'
     </CodeGroup>
   </Col>
 </Row>
+
+---
+
+<Heading
+  url='/site'
+  method='GET'
+  title='获取应用 WebApp 设置'
+  name='#site'
+/>
+<Row>
+  <Col>
+  用于获取应用的 WebApp 设置
+  ### Response
+  - `title` (string) WebApp 名称
+  - `chat_color_theme` (string) 聊天颜色主题, hex 格式
+  - `chat_color_theme_inverted` (bool) 聊天颜色主题是否反转
+  - `icon_type` (string) 图标类型, `emoji`-表情, `image`-图片
+  - `icon` (string) 图标, 如果是 `emoji` 类型, 则是 emoji 表情符号, 如果是 `image` 类型, 则是图片 URL
+  - `icon_background` (string) hex 格式的背景色
+  - `icon_url` (string) 图标 URL
+  - `description` (string) 描述
+  - `copyright` (string) 版权信息
+  - `privacy_policy` (string) 隐私政策链接
+  - `custom_disclaimer` (string) 自定义免责声明
+  - `default_language` (string) 默认语言
+  - `show_workflow_steps` (bool) 是否显示工作流详情
+  - `use_icon_as_answer_icon` (bool) 是否使用 WebApp 图标替换聊天中的 🤖
+  </Col>
+  <Col>
+  <CodeGroup title="Request" tag="POST" label="/meta" targetCode={`curl -X GET '${props.appDetail.api_base_url}/site' \\\n-H 'Authorization: Bearer {api_key}'`}>
+    ```bash {{ title: 'cURL' }}
+    curl -X GET '${props.appDetail.api_base_url}/site' \
+    -H 'Authorization: Bearer {api_key}'
+    ```
+
+    </CodeGroup>
+
+    <CodeGroup title="Response">
+    ```json {{ title: 'Response' }}
+    {
+      "title": "My App",
+      "chat_color_theme": "#ff4a4a",
+      "chat_color_theme_inverted": false,
+      "icon_type": "emoji",
+      "icon": "😄",
+      "icon_background": "#FFEAD5",
+      "icon_url": null,
+      "description": "This is my app.",
+      "copyright": "all rights reserved",
+      "privacy_policy": "",
+      "custom_disclaimer": "All generated by AI",
+      "default_language": "en-US",
+      "show_workflow_steps": false,
+      "use_icon_as_answer_icon": false,
+    }
+    ```
+    </CodeGroup>
+  </Col>
+</Row>
+___