Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-04-18T04:12:37","request-id":"f28b6cf2-17ca-4765-931c-f5cb566fe18a","client-request-id":"f28b6cf2-17ca-4765-931c-f5cb566fe18a"}}}"