请求加一个测试模型是否正常连接的功能

[3377]

• [X ] 我已确认目前没有类似 issue
• 我已确认我已升级到最新版本
• 我已完整浏览项目 README 和项目文档并未找到解决方案
• 我理解并愿意跟进此 issue，协助测试和提供反馈
• 我将以礼貌和尊重的态度提问，不得使用不文明用语 (包括在此发布评论的所有人同样适用, 不遵守的人将被 block)
• 我理解并认可上述内容，并理解项目维护者精力有限，不遵循规则的 issue 可能会被无视或直接关闭

功能描述
类似new-api里面，填入过后可以测一下是否可以正常连接。
相关截图 (如果有)

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

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Title: Request to add a function to test whether the model is connected normally

• I have confirmed that there is currently no similar issue
• I have confirmed that I have upgraded to the latest version
• I have fully browsed the project README and project documentation and did not find a solution
• I understand and am willing to follow up on this issue, assist with testing and provide feedback
• I will ask questions in a polite and respectful manner and shall not use uncivilized language (the same applies to everyone who posts comments here, those who do not comply will be blocked)
• I understand and acknowledge the above content, and understand that project maintainers have limited energy. Issues that do not follow the rules may be ignored or closed directly

Function description
Similar to new-api, after filling it in, you can test whether it can connect normally.
Relevant screenshots (if any)

[3377]

当初测试了3个流行的中转，就因为这个舍弃了，没想到几个月了还不支持。不过这个项目是目前唯一手机端支持良好的。

[Issues-translate-bot]

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I initially tested 3 popular relays, but discarded them just because of this.

[AnnaStreeter]

直接在聊天栏里输入就行，中转项目没有聊天功能因此才需要测试。

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

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Just enter it directly in the chat bar. The transfer project does not have a chat function, so it needs to be tested.