Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-14T04:14:40","request-id":"9cfe1d92-043b-4fc8-ae6c-4d9919550b8b","client-request-id":"9cfe1d92-043b-4fc8-ae6c-4d9919550b8b"}}}"