/skills command should not be awaited

### Describe the bug

When using commands for configuring the client, I feels that those should not depend on the agent current work. I should be able to change my model, configure skills, do some stuff that would be picked up in the next iteration without having to wait the answer.

### Affected version

_No response_

### Steps to reproduce the behavior

_No response_

### Expected behavior

_No response_

### Additional context

_No response_

首先跟踪 CLI 中 /skills 命令的处理方式，以及配置命令是如何被等待的。确认 /skills 返回时不会等待当前 agent 的工作完成，并确认更新后的配置会在下一次迭代中使用；issue 未提供文件名或测试名称。

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