Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-07-14T20:53:59","request-id":"86792b93-75fe-4ca8-a868-a639d405baf2","client-request-id":"86792b93-75fe-4ca8-a868-a639d405baf2"}}}"