流式

const stream = theo.stream({
  prompt: "Explain how TCP/IP works",
});

for await (const event of stream) {
  switch (event.type) {
    case "meta":     console.log("Mode:", event.data.resolved_mode); break;
    case "token":    process.stdout.write(event.token); break;
    case "tool":     console.log("Tool:", event.data.name, event.data.status); break;
    case "artifact": renderArtifact(event.data); break;
    case "error":    console.error("Stream error:", event.data.error); break;
    case "done":     console.log("\nCost:", event.data.usage.cost_cents); break;
  }
}

// Final metadata — populated from meta + done events.
console.log("conversation_id:", stream.conversationId);
console.log("usage:", stream.usage);
console.log("request_id:", stream.requestId);

const stream = theo.stream({ prompt: "Write a 5000-word essay…" });
// Wire up your UI's "Stop generating" button:
cancelButton.onclick = () => stream.cancel();
for await (const event of stream) {
  // ...
}

curl -N -X POST https://www.hitheo.ai/api/v1/completions \
  -H "Authorization: Bearer $THEO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Write a haiku about code", "stream": true}'

event: meta
data: {"id":"cmpl_abc","resolved_mode":"fast","model":{"id":"theo-1-flash","label":"Theo Flash","engine":"theo-core"},"conversation_id":null,"request_id":"req_9f2e1a", ...}

event: token
data: {"token":"Lines"}

event: token
data: {"token":" of"}

event: done
data: {"id":"cmpl_abc","content":"Lines of code","usage":{"cost_cents":0.01,"prompt_tokens":8,"completion_tokens":2,"total_tokens":10}, ...}

const evi = theo.evi({
  persona: "You are Kai, a coding assistant...",
});

const stream = evi.stream({
  prompt: "Debug this React hook",
});

for await (const event of stream) {
  if (event.type === "token") process.stdout.write(event.token);
}
console.log("request_id:", stream.requestId);