refactor(docker): 重构容器配置并添加PostgreSQL支持

- 将Dockerfile重命名为Dockerfile.php以明确用途
- 新增Dockerfile.postgres用于构建带pgvector扩展的PostgreSQL镜像
- 拆分初始化SQL脚本为mysql和postgres专用版本
- 更新docker-compose配置以使用新的构建文件
- 修改init_env.sh脚本适配新的初始化文件路径

重构目的是提高配置的模块化和可维护性，同时为系统添加PostgreSQL向量搜索支持。

vps/Dockerfile.php

@@ -0,0 +1,77 @@
+# 设置 PHP 版本作为构建参数
+ARG PHP_VERSION
+FROM php:${PHP_VERSION}-fpm
+
+# 设置环境变量
+ENV DEBIAN_FRONTEND=noninteractive
+
+# 更新包管理器并安装必要的依赖
+RUN apt-get update && apt upgrade -y && apt-get install -y \
+    unzip \
+    libbz2-dev \
+    libmemcached-dev \
+    zlib1g-dev \
+    libldap2-dev \
+    libpng-dev \
+    libpq-dev \
+    libjpeg-dev \
+    libjpeg62-turbo-dev \
+    libwebp-dev \
+    libxpm-dev \
+    libvpx-dev \
+    libfreetype6-dev \
+    libxml2-dev \
+    libicu-dev \ 
+    git \   
+    curl \
+    && apt install -y \
+    libmariadb-dev-compat \
+    libmariadb-dev \
+    libzip-dev \
+    libmagickwand-dev \
+    imagemagick \
+    libmcrypt-dev \
+    libmcrypt4 \
+    libssl-dev \
+    && docker-php-ext-configure gd --with-freetype --with-jpeg --with-webp --with-xpm \
+    && docker-php-ext-install -j$(nproc) gd pdo pdo_mysql mysqli zip intl exif ldap bcmath opcache bz2 gettext sockets \
+    && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
+    && docker-php-ext-install -j$(nproc) ldap \
+    && pecl install imagick memcached redis \
+    && docker-php-ext-enable imagick memcached redis
+
+# 安装 mcrypt 扩展
+RUN if [ "${PHP_VERSION}" = "8.2" ]; then \
+        pecl install mcrypt-1.0.7 && docker-php-ext-enable mcrypt; \
+    elif [ "${PHP_VERSION}" = "7.4" ]; then \
+        pecl install mcrypt-1.0.4 && docker-php-ext-enable mcrypt; \
+    fi
+
+# 安装 swoole 扩展
+RUN if [ "${PHP_VERSION}" = "8.2" ]; then \
+        pecl install swoole && docker-php-ext-enable swoole; \
+    elif [ "${PHP_VERSION}" = "7.4" ]; then \
+        pecl install swoole-4.8.11 && docker-php-ext-enable swoole; \
+    fi
+
+# 安装 SourceGuardian 扩展
+RUN if [ "${PHP_VERSION}" = "8.2" ]; then \
+        curl -L -o /tmp/loaders.linux-x86_64.tar.gz https://www.sourceguardian.com/loaders/download/loaders.linux-x86_64.tar.gz \
+        && tar -zxvf /tmp/loaders.linux-x86_64.tar.gz -C /tmp/ \
+        && cp /tmp/ixed.8.2.lin /usr/local/lib/php/extensions/no-debug-non-zts-20220829/ \
+        && echo "zend_extension=ixed.8.2.lin" > /usr/local/etc/php/conf.d/sourceguardian.ini \
+        && rm -rf /tmp/loaders.linux-x86_64.tar.gz; \
+    elif [ "${PHP_VERSION}" = "7.4" ]; then \
+        curl -L -o /tmp/loaders.linux-x86_64.tar.gz https://www.sourceguardian.com/loaders/download/loaders.linux-x86_64.tar.gz \
+        && tar -zxvf /tmp/loaders.linux-x86_64.tar.gz -C /tmp/ \
+        && cp /tmp/ixed.7.4.lin /usr/local/lib/php/extensions/no-debug-non-zts-20190902/ \
+        && echo "zend_extension=ixed.7.4.lin" > /usr/local/etc/php/conf.d/sourceguardian.ini \
+        && rm -rf /tmp/loaders.linux-x86_64.tar.gz; \
+    fi
+
+# 配置 PHP 上传限制和内存限制
+RUN echo "upload_max_filesize=80M\n post_max_size=100M" > /usr/local/etc/php/conf.d/uploads.ini \
+    && echo "memory_limit=256M" > /usr/local/etc/php/conf.d/memory.ini
+
+# 清理包缓存和临时文件
+RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*