ruff

cfe25ab4 - [red-knot] Support untitled files in the server (#13044)

[red-knot] Support untitled files in the server (#13044) ## Summary This PR adds support for untitled files in the red knot server. ## Test Plan https://github.com/user-attachments/assets/57fa5db6-e1ad-4694-ae5f-c47a21eaa82b