Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-01T20:44:49","request-id":"0bdf7def-9ba4-4105-832e-0089a113d2a3","client-request-id":"0bdf7def-9ba4-4105-832e-0089a113d2a3"}}}"