feat:新增投顾agent和nl2sqlagent

agent/data_query/agent.py

@@ -0,0 +1,27 @@
+"""面向其他 Agent 的数据查询适配器。"""
+from __future__ import annotations
+
+from uuid import uuid4
+
+from nl2sql.contracts import DataQueryRequest
+from nl2sql.streaming import stream_query_events
+from service.nl2sql.query_service import execute_query
+
+
+class DataQueryAgent:
+    """只依赖公共查询服务，不直接调用其他 Agent 或基础设施。"""
+
+    async def query(self, request: DataQueryRequest, **dependencies):
+        """转发查询请求，缺省生成内部查询 ID。"""
+        dependencies.setdefault("query_id", uuid4().hex)
+        return await execute_query(request, **dependencies)
+
+    async def stream(self, request: DataQueryRequest, **dependencies):
+        """以结构化事件流转发查询，不暴露 SQL、结果行和异常消息。"""
+        dependencies.setdefault("query_id", uuid4().hex)
+        async for event in stream_query_events(
+            request,
+            query_runner=execute_query,
+            **dependencies,
+        ):
+            yield event