Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-12T14:36:24","request-id":"78793b05-6908-4142-a266-5b83bd42ba92","client-request-id":"78793b05-6908-4142-a266-5b83bd42ba92"}}}"