[Feature Request]: Progress Indicator for Model Download

When a model isn't downloaded already, Scope asks to download the model. After that, a "Downloading" spinner comes up. This then sits there for a long time. It would be good to have a download progress indicator.

<img width="1476" height="820" alt="Image" src="https://github.com/user-attachments/assets/7a7f8419-0f39-4d13-9061-bea43cc02988" />