copilot-requests property

Hi,

I'm trying to test out `gh-aw` on a private repo. I've added:

```yaml
features:
  copilot-requests: true
```

To my workflow YAML but when it runs out I see the following error:

<img width="1035" height="122" alt="Image" src="https://github.com/user-attachments/assets/332d38ab-a1bc-4e47-bd13-15a0c3fe6712" />

Is this because of some enterprise restriction?

Thanks.