build: 清理apt源并配置Composer镜像加速依赖安装

清理现有apt源文件避免冲突，统一使用USTC镜像源
添加Composer镜像配置使用阿里云源，提前安装依赖优化构建过程

Dockerfile

@@ -1,6 +1,7 @@
 FROM php:8.2-fpm-bookworm
 
-RUN echo "deb http://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list \
+RUN rm -rf /etc/apt/sources.list.d/* \
+    && echo "deb http://mirrors.ustc.edu.cn/debian/ bookworm main contrib non-free non-free-firmware" > /etc/apt/sources.list \
     && echo "deb http://mirrors.ustc.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware" >> /etc/apt/sources.list \
     && echo "deb http://mirrors.ustc.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware" >> /etc/apt/sources.list
 
@@ -33,9 +34,22 @@ RUN rm /etc/nginx/sites-available/default /etc/nginx/sites-enabled/default
 
 # 设置工作目录
 WORKDIR /var/www/html
+
+# 安装 Composer
+COPY --from=composer:2 /usr/bin/composer /usr/local/bin/composer
+
+# 复制 composer.json 并安装依赖
+COPY composer.json /var/www/html/
+# 配置 composer 镜像源并安装依赖
+RUN composer config -g repos.packagist composer https://mirrors.aliyun.com/composer/ \
+    && composer install --no-dev --no-interaction --no-scripts --no-autoloader
+
 # 将当前目录下的文件拷贝到工作目录
 COPY . /var/www/html
 
+# 生成自动加载文件
+RUN composer dump-autoload --optimize --no-dev --classmap-authoritative
+
 # 内部安装compsoer并安装依赖，如果不需要可以注释掉
 # RUN install-php-extensions @composer