fixup! Add repo-assist.md for automated repository assistant

Author: xperiandri

.github/workflows/copilot-setup-steps.yml

@@ -14,7 +14,7 @@ on:
 jobs:
   # The job MUST be called `copilot-setup-steps` or it will not be picked up by Copilot.
   copilot-setup-steps:
-    runs-on: windows-2025
+    runs-on: ubuntu-latest
 
     # Set the permissions to the lowest permissions possible needed for your steps.
     # Copilot will be given its own token for its operations.