Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-02T12:46:38","request-id":"5a46123d-4ae6-4227-b46f-db7556050e2e","client-request-id":"5a46123d-4ae6-4227-b46f-db7556050e2e"}}}"