Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-25T08:51:40","request-id":"c21beb88-2687-4036-9294-f5bbd4223b86","client-request-id":"c21beb88-2687-4036-9294-f5bbd4223b86"}}}"