袁聪的第一次提交，包含nl2sql,行情数据,场外申购

tests/conftest.py

@@ -1,5 +1,11 @@
+import asyncio
+import sys
+
 import pytest
 
+if sys.platform == "win32":
+    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())
+
 from app.core.contracts import AgentDefinition, CoreResult, ResolvedAgentConfig
 from app.service.agent.base import BaseAgent
 from app.service.agent.factory import AgentFactory