Newly enabled model remains unavailable until local Copilot state/cache/login is cleared

Describe the bug

Newly enabled Copilot models can remain unavailable because the local model catalog does not refresh. Sonnet 5 was enabled in GitHub settings but unavailable in CLI and Visual Studio until local Copilot state/cache was manually reset. This seems to also affect the model list in the Visual Studio copilot extension. It was never a problem with Visual studio before I installed CLI and wasn't an issue for my coworkers who haven't used the CLI.

Note: I did both renames and re-login in the repro, I didn't check the model list in-between, so I'm unclear on what specifically fixed it and I don't have the admin rights to keep testing this by enabling models.

Affected version

1.0.80, also affected Visual Studio Insiders 12106.202

Steps to reproduce the behavior

1. Enable a previously unavailable model in Copilot settings.
2. Restart/re-authenticate CLI and Visual Studio.
3. Model remains unavailable.
4. Close Copilot and VS
5. Rename %LOCALAPPDATA%\copilot to something like copilot-backup.
6. Rename %USERPROFILE%.copilot\config.json to config.json.backup.
7. Start Copilot CLO, /logout /login
8. Model becomes available in CLI and Visual Studio.

Expected behavior

I assume model availability should refresh on restart at least. I don't see any documentation for manually updating the model list, so I assume it isn't something the user is supposed to worry about.

Additional context

No response

Beginne damit, den Ablauf der Modellverfügbarkeit in CLI und Visual Studio nach der Aktivierung eines Modells zu reproduzieren, unter Verwendung der gemeldeten Zustandsorte %LOCALAPPDATA%\copilot und %USERPROFILE%.copilot\config.json sowie der Befehle /logout /login. Vergleiche das Verhalten vor und nach dem manuellen Umbenennen dieser Dateien; als abgeschlossen gilt die Aufgabe, wenn der Modellkatalog nach einem Neustart oder einer erneuten Authentifizierung ohne manuelles Entfernen des Zustands aktualisiert wird.