Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-04T17:17:46","request-id":"2c48ca14-4653-44f4-99ce-b3190dad517d","client-request-id":"2c48ca14-4653-44f4-99ce-b3190dad517d"}}}"