Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-07T05:51:26","request-id":"e0bf3a2a-c0aa-4c76-8a8e-a323af3e3e97","client-request-id":"e0bf3a2a-c0aa-4c76-8a8e-a323af3e3e97"}}}"