完善docker网络部分

backend/dockerfile

@@ -2,7 +2,7 @@ FROM python:3.11-slim
 WORKDIR /app
 
 # 安装依赖
-RUN pip install --no-cache-dir fastapi==0.115.8 uvicorn[standard]==0.34.4 python-multipart
+RUN pip install --no-cache-dir fastapi==0.115.8 uvicorn[standard]==0.34.3 python-multipart
 
 # 复制代码
 COPY . .

docker-compose.yml

@@ -16,8 +16,6 @@ services:
     build:
       context: ./backend
       dockerfile: dockerfile
-    ports:
-      - "5000:5000"
     networks:
       - app-network