HHAPI 开发者文档：OpenAI 兼容 API 中转服务，从首次调用到应用集成的完整接入指南与参考

curl <API_BASE_URL>/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <YOUR_API_KEY>" \
  -d '{
    "model": "<MODEL_ID>",
    "messages": [
      {"role": "user", "content": "你好，请介绍一下你自己。"}
    ]
  }'