Chat show "No Active Xcode Workspace"

**Describe the bug**
When I’m using Xcode, my dialog box remains unresponsive.I tried uninstalling and reinstalling, but the result is still the same.What should I do to fix it?

**Versions**
- Copilot for Xcode: [Version 0.33.0 (0.33.0)]
- Xcode: [Version 16.0 (16A242d)]
- macOS: [15.0 (24A335)]

**Steps to reproduce**
1. open Xcode and open Chat
2. write some code

**Screenshots**

**Logs**

**Additional context**