Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-07-02T09:40:26","request-id":"ab383fcb-e3ef-4f14-b86f-20c13faa8406","client-request-id":"ab383fcb-e3ef-4f14-b86f-20c13faa8406"}}}"