Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-26T03:36:07","request-id":"d8f211d9-4fea-4f33-8709-289ba6655f5f","client-request-id":"d8f211d9-4fea-4f33-8709-289ba6655f5f"}}}"