Update Dockerfile

Dockerfile

@@ -6,16 +6,16 @@ FROM node:lts-slim AS frontend-builder
 RUN apt-get update && \
     apt-get install -y --no-install-recommends git ca-certificates && \
     apt-get clean && \
-    rm -rf /var/lib/apt/lists/* && \
-    rm -rf /app/*
+    rm -rf /var/lib/apt/lists/*
+    
 
-COPY .env /app/
 
 # 设置工作目录并克隆项目
 WORKDIR /app
 ARG REPO_URL=https://github.com/1653756334/PikPakInvitation.git
 ARG BRANCH=main
 RUN git clone -b ${BRANCH} ${REPO_URL} .
+COPY .env /app/
 
 # 安装 pnpm 并构建前端
 WORKDIR /app/frontend