From da4a7b0dd4a3af1cf4ceea311cfd106235108dde Mon Sep 17 00:00:00 2001
From: root <953994191@qq.com>
Date: Mon, 27 Apr 2026 18:16:37 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D:=20ThreadHistoryService=20?=
 =?UTF-8?q?=E5=88=9D=E5=A7=8B=E5=8C=96=E5=8F=82=E6=95=B0=E9=94=99=E8=AF=AF?=
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---
 backend/app/backend.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/backend/app/backend.py b/backend/app/backend.py
index 6c919a7..22431e2 100644
--- a/backend/app/backend.py
+++ b/backend/app/backend.py
@@ -44,8 +44,8 @@ async def lifespan(app: FastAPI):
         agent_service = AIAgentService(checkpointer)
         await agent_service.initialize()
         
-        # 3. 创建历史查询服务
-        history_service = ThreadHistoryService(checkpointer.conn)
+        # 3. 创建历史查询服务（保持原有的 checkpointer 参数）
+        history_service = ThreadHistoryService(checkpointer)
         
         # 3.5 创建子图 Repositories
         contact_repo = ContactRepository(checkpointer.conn)