# CFC LangGraph 问卷生成服务

关系评估问卷 AI 出题 graph，部署到 `ai.etotem.com.cn`。

## 启动

```bash
cd cfc-langgraph
pip install -r requirements.txt
cp .env.example .env  # 填写 OPENAI_API_KEY / OPENAI_BASE_URL / LLM_MODEL
uvicorn src.app:app --host 0.0.0.0 --port 9000
```

## 端点

| Method | Path | 说明 |
|--------|------|------|
| GET | `/health` | 健康检查 |
| POST | `/api/v1/questionnaire/generate` | 生成关系问卷 JSON |

## 测试

```bash
cd cfc-langgraph
pytest tests/ -v
```

## 契约

Request:
```json
{
  "member_name": "小明",
  "relationship_type": "child",
  "family_context": {}
}
```

Response:
```json
{
  "questionnaire_json": "<stringified JSON>",
  "version": "20260804115900"
}
```