Node.js 接入

示例：

• Mock 循环：examples/node-cli
• 真实 LLM：examples/node-openrouter

bun run examples/node-openrouter/index.ts
# 可选：export OPENROUTER_API_KEY=...

import { createVoiceSession, createMockASR, createMockTTS } from '@ottervoice/core';
import { createNodeRuntime } from '@ottervoice/runtime-node';
import { createOpenRouterLLM } from '@ottervoice/provider-openrouter';

const runtime = createNodeRuntime();
const session = createVoiceSession({
  mode: 'half_duplex',
  runtime,
  providers: {
    asr: createMockASR({ transcripts: ['Say hello'] }),
    llm: createOpenRouterLLM({
      apiKey: process.env.OPENROUTER_API_KEY!,
      model: 'openai/gpt-4o-mini',
    }),
    tts: createMockTTS(),
  },
});

await session.start();

服务端可以直接用 apiKey；浏览器 / App 必须走 Token Broker。