Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-15T00:39:10","request-id":"507459f7-5e70-4026-9ddd-e153d9675579","client-request-id":"507459f7-5e70-4026-9ddd-e153d9675579"}}}"