feat:增加查询用户历史消息功能

router.py

@@ -1,8 +1,10 @@
+from typing import List
+
 from fastapi import APIRouter
 from fastapi.responses import StreamingResponse
 
-from model import ChatRequest
-from services.agent_service import get_messages, clear_messages, search_recipes
+from model import ChatRequest, SessionMessageResponse
+from services.agent_service import get_messages, clear_messages, search_recipes, get_user_session_messages
 
 router = APIRouter()
 
@@ -16,11 +18,16 @@ async def chat_endpoint(request: ChatRequest):
     )
 
 
-@router.get("/chat/messages")
-async def get_chat_messages(thread_id: str):
+@router.get("/chat/messages/session", response_model=List[SessionMessageResponse])
+def get_session_messages(username: str):
     """获取历史消息"""
-    messages = get_messages(thread_id)
-    return {"messages": messages}
+    return get_user_session_messages(username)
+
+
+@router.get("/chat/messages")
+def get_chat_messages(thread_id: str):
+    """获取历史消息"""
+    return get_messages(thread_id)
 
 
 @router.delete("/chat/messages")