Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-04T07:08:35","request-id":"cb6faddc-6cd8-4fbf-9cc2-2f6ab824bc27","client-request-id":"cb6faddc-6cd8-4fbf-9cc2-2f6ab824bc27"}}}"