feat: 优化入口文件执行次数

app/main.py

@@ -0,0 +1,35 @@
+import datetime
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+from fastapi.openapi.docs import get_swagger_ui_oauth2_redirect_html, get_redoc_html, get_swagger_ui_html
+from fastapi.responses import RedirectResponse
+from langchain.chat_models import init_chat_model
+from langserve import add_routes
+from starlette.staticfiles import StaticFiles
+
+from app.config.env import env
+from app.controller.add_custom_stream_route import add_custom_stream_route
+from app.controller.add_graph_proxy_route import add_graph_proxy_route
+from app.routes import routes
+from app.utils.get_local_ips import get_local_ips
+from app.utils.llm_utils import create_llm
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+  print(f"应用启动：{datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
+  yield
+  print(f"应用销毁：{datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')}")
+
+
+app = FastAPI(
+  lifespan=lifespan,
+  docs_url=None,  # 禁用默认 Swagger
+  redoc_url=None,  # 禁用默认 ReDoc
+)
+
+for add_route_func in routes:
+  add_route_func(app)
+
+print("/*---------------------------------------main-------------------------------------------*/")