feat(stack): 新增 docker-dev 开发模式并自动清理文件

- 新增 docker-dev 部署模式，提供包含 nginx+php-fpm、MySQL、Redis、phpMyAdmin 和 Xdebug 的完整 Docker 开发环境
- 在 StackModeService 中重写 applyMode 方法，切换模式时自动删除目标模式中不存在的已管理文件
- 新增 .docker-dev.env 配置文件并纳入 managed_files 管理，切换模式时自动复制或删除

source/stack/docker-dev/Dockerfile

@@ -63,20 +63,8 @@ RUN composer dump-autoload
 # RUN install-php-extensions @composer
 
 # Dev mode PHP config (overrides zz-phprun.ini)
-RUN echo '; Dev mode PHP config (overrides zz-phprun.ini)' > /usr/local/etc/php/conf.d/zzz-dev.ini && \
-    echo 'opcache.enable = 0' >> /usr/local/etc/php/conf.d/zzz-dev.ini && \
-    echo 'opcache.jit_buffer_size = 0' >> /usr/local/etc/php/conf.d/zzz-dev.ini && \
-    echo 'display_errors = On' >> /usr/local/etc/php/conf.d/zzz-dev.ini && \
-    echo 'error_reporting = E_ALL' >> /usr/local/etc/php/conf.d/zzz-dev.ini
-
-# Xdebug dev config
-RUN echo '; Xdebug dev config' > /usr/local/etc/php/conf.d/zzz-xdebug.ini && \
-    echo 'xdebug.mode = debug,develop' >> /usr/local/etc/php/conf.d/zzz-xdebug.ini && \
-    echo 'xdebug.start_with_request = trigger' >> /usr/local/etc/php/conf.d/zzz-xdebug.ini && \
-    echo 'xdebug.client_host = host.docker.internal' >> /usr/local/etc/php/conf.d/zzz-xdebug.ini && \
-    echo 'xdebug.client_port = 9003' >> /usr/local/etc/php/conf.d/zzz-xdebug.ini && \
-    echo 'xdebug.discover_client_host = true' >> /usr/local/etc/php/conf.d/zzz-xdebug.ini && \
-    echo 'xdebug.idekey = DOCKER_DEV' >> /usr/local/etc/php/conf.d/zzz-xdebug.ini
+COPY docker/zzz-dev.ini /usr/local/etc/php/conf.d/zzz-dev.ini
+COPY docker/zzz-xdebug.ini /usr/local/etc/php/conf.d/zzz-xdebug.ini
 
 VOLUME /var/www/html/runtime
 VOLUME /var/www/html/public/storage