feat: 增加IP地址记录功能以保存用户响应

- 在RawResponse模型中新增ip_address字段
- 更新结果处理逻辑以记录用户的IP地址

app.py

@@ -87,6 +87,7 @@ async def result(request: Request, scale_id: str, db: Session = Depends(get_db))
         db_response = RawResponse(
             scale_id=scale_id,
             user_agent=request.headers.get("user-agent", "Unknown"),
+            ip_address=request.client.host,
             response=dict(form_data)
         )
         db.add(db_response)

database.py

@@ -18,6 +18,7 @@ class RawResponse(Base):
     id = Column(Integer, primary_key=True, index=True)
     scale_id = Column(String, index=True)
     user_agent = Column(String)
+    ip_address = Column(String)
     response = Column(JSON)
     created_at = Column(DateTime, default=datetime.now(UTC))