Update Dockerfile

Dockerfile

@@ -7,8 +7,8 @@ COPY custom.css /app/build/assets/
 COPY custom.js /app/build/assets/
 
 # 在</head>标签前添加custom.css引用
-RUN sed -i 's|</head>|<link rel="stylesheet" href="assets/custom.css"></head>|' /app/build/index.html && \
-    sed -i 's|</body>|<script src="assets/custom.js"></script></body>|' /app/build/index.html
+RUN sed -i 's|</head>|<link rel="stylesheet" href="/assets/custom.css"></head>|' /app/build/index.html && \
+    sed -i 's|</body>|<script src="/assets/custom.js"></script></body>|' /app/build/index.html
 
 # 安装Redis
 RUN apt-get update && apt-get install -y redis-server