Problème de connexion AWS Q

## System details (run `AWS: About` and/or `Amazon Q: About`)

- OS:
- Visual Studio Code version: ça ne fonctionne plus dans mon Vs code(ça tourne sans fin) et dans intelligi ça marque Re-authenticate ou sign-out
- AWS Toolkit version:
- Amazon Q version:

## Question

Start by running AWS: About and Amazon Q: About in Visual Studio Code and record the OS and extension versions requested in the issue. Reproduce the endless connection state in VS Code and the “Re-authenticate” or “sign-out” prompt in IntelliJ, then document clear steps and expected versus actual behavior before identifying the relevant authentication entry point.

Written by the indexing model from the issue text.