Copilot doesnt has access to other added/dragged projects beside the main Project/Wokspace

**Describe the bug**
Assuming you are developing an SDK or Framework and you need to test in the app.
The usual way would be to drag the framework project inside the app.
And then continue to work on the SDK while you are in the app project, u need the app to run in order to check the SDK.
Copilot knows/ recognize only the app files. We can obviously open the SDK project but then we will loose the app .

**Versions**
- Copilot for Xcode: 0.32.0
- Xcode: 16.1
- macOS: 15.3.2 (24D81)

**Steps to reproduce**
1. Create app
2. Create another project and drag that project in to the app
3. In copilot try to attach files from the project you dragged