Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-10T08:50:44","request-id":"4021051d-0739-4fde-9f9d-4b24a342aec9","client-request-id":"4021051d-0739-4fde-9f9d-4b24a342aec9"}}}"