feat: remove cros mideware

Author: alichengyue

server/main.py

@@ -3,7 +3,6 @@
 import uvicorn
 from fastapi import FastAPI
 from fastapi.responses import StreamingResponse
-from fastapi.middleware.cors import CORSMiddleware
 from starlette.middleware.sessions import SessionMiddleware
 
 from agent import stream
@@ -23,13 +22,6 @@
     description="Agent Chat APIs"
 )
 
-app.add_middleware(
-    CORSMiddleware,
-    allow_origins=["*"],  # 明确指定允许的源
-    allow_credentials=True,
-    allow_methods=["*"],  # 允许所有方法
-    allow_headers=["*"],  # 允许所有头部
-)
 app.add_middleware(
     SessionMiddleware,
     secret_key = session_secret_key,