Session token expiry stops works flows, resuming fixes issue.

### Describe the bug

When the session token expires, it does not automatically refresh. This causes the CLI flow to fail, sometimes in the middle of a task. Everytime I have run into this issue, just asking the CLI to resume the current task/ToDos fixes the issues. Restarting the CLI or signing out and back in has NEVER been required.

✗ Session token expired and the request could not be retried. Please resend your message. (Request ID: 38E7::795FA4:6A2AB5BF)

### Affected version

GitHub Copilot CLI 1.0.61

### Steps to reproduce the behavior

1. Long running session
2. Keep session active with tass

### Expected behavior

Token expiry should be refreshed automatically, and resume when possible.

### Additional context

Windows 11
PowerShell
Not running within VS or Code

首先，在使用 PowerShell 的 Windows 11 长时间运行 CLI 会话中复现该问题，然后检查活动任务期间如何处理已过期的会话令牌。完成的标准是令牌自动刷新，并且当前任务无需重启 CLI 或再次登录即可恢复。

由索引模型根据 Issue 内容生成。