[Feature] The AI gateway now supports multiple API keys

[Gas0515]

1Panel Version

2.3.2

Please describe your needs or suggestions for improvements

AI网关增加多API Key支持，一个key被限流或者失败后，自动切换下一个key使用

Please describe the solution you suggest

No response

Additional Information

No response

[zhengkunwang223]

后续版本支持