Run a harness, read the decision

// Route a support ticket — the call this page runs
const response = await fetch('https://ai.gateway.lovable.dev/v1/systemone', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${process.env.LOVABLE_API_KEY}`, // server side only
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    model: 'typesafe/jev-latest',
    state, // the context your code already has, unchanged
    questions: {
        "department": {
            "type": "choice",
            "instructions": "Which team should handle this ticket?",
            "criteria": {
                "billing": "charges, invoices and refunds",
                "technical": "bugs, outages and integration failures",
                "account": "login, permissions and profile changes",
                "other": "anything that does not fit the other teams"
            }
        },
        "severity": {
            "type": "score",
            "instructions": "How severe is this for the customer?",
            "criteria": [
                "cosmetic or informational",
                "degraded, a workaround exists",
                "blocking, no workaround",
                "blocking with financial or data loss"
            ]
        },
        "escalate": {
            "type": "noul",
            "instructions": "Should this go to a human immediately?"
        }
    },
  }),
});

const { answers, usage } = await response.json();

// act on it, in code
const gate = answers.department;
if ((gate.confidence ?? gate.noul) < 0.8) {
  // send to a human triage queue instead of routing
}

Keep the key server-side. The question set is data — keep it next to the code that acts on the answer.