refactor: 客服agent的切片结构调整重构

main.py

@@ -6,6 +6,7 @@ from fastapi import FastAPI
 
 from api.router import api_router
 from config import database
+from rag.milvus_collections import ensure_collections
 from service.customer_agent.bootstrap import (
     build_default_knowledge_upload_service,
     build_default_runtime,
@@ -17,11 +18,12 @@ from utils.request_id import RequestIdMiddleware
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
-    setup_logging()  # 幂等：分级日志 + trace_id + 脱敏
-    # 四库会话懒创建：启动不连接任何库，首次访问才建，可手动预热：
-    # asyncio.run(database.init_db())
+    setup_logging()
+    await ensure_collections()
+    app.state.customer_agent_runtime = build_default_runtime()
+    app.state.knowledge_upload_service = build_default_knowledge_upload_service()
     yield
-    await database.dispose()  # 清理已创建的单例（未创建则空操作）
+    await database.dispose()
 
 
 app = FastAPI(title="智能公募基金系统", version="0.1.0", lifespan=lifespan)