Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-13T16:03:30","request-id":"ea75e258-27c7-410b-8149-9c4d9f0aa765","client-request-id":"ea75e258-27c7-410b-8149-9c4d9f0aa765"}}}"