feat: add default verification code information for registration (#296)

Author: dsx137

docs/guides/gettingStarted/quickTestServer.md

@@ -21,6 +21,10 @@ sidebar_position: 9
 
 ![PC Web Interface](./assets/pc-web.png)
 
+如果需要在 PC Web 上注册账号，默认配置下可直接使用验证码 `666666`。
+
+> 该值来自 `chat/config/chat-rpc-chat.yml` 中的 `verifyCode.superCode`；默认 `phone.use` 和 `mail.use` 也都是 `superCode`。如果你已经修改过配置，请以实际部署值为准。
+
 ## 📌 四、服务进程验证
 
 确认 OpenIMServer 与 ChatServer 进程状态正常。

i18n/en/docusaurus-plugin-content-docs-guides/current/gettingStarted/quickTestServer.md

@@ -21,6 +21,10 @@ Enter `http://your_server_ip:11001` in your browser to access PC Web. `your_serv
 
 ![PC Web Interface](./assets/pc-web.png)
 
+If you need to register an account on PC Web, the default verification code is `666666`.
+
+> This value comes from `verifyCode.superCode` in `chat/config/chat-rpc-chat.yml`. By default, both `phone.use` and `mail.use` are also set to `superCode`. If you have changed the configuration, use the actual deployed value.
+
 ## 📌 4. Service Process Verification
 
 Confirm that OpenIMServer and ChatServer are running normally.