Hidden Models in Agency Copilot while It is showing on VSCode

### Describe the bug

I was using Opus 4.7 Extra High reasoning, It disappear become hidden model in my second devbox, first devbox shows the models correctly, I am using internal Microsoft Agency Copilot, they say they fetch the models from your API so the bug is on your end.

### Affected version

1.0.52-2

### Steps to reproduce the behavior

_No response_

### Expected behavior

_No response_

### Additional context

_No response_

未指定源文件或测试。首先比较运行版本 1.0.52-2 的两个 devbox 之间的模型/API 响应，并复现隐藏模型状态；完成的标准是确定 Agency Copilot 环境之间的模型可见性为何不同。

由索引模型根据 Issue 内容生成。