refactor(docker): 重构本地开发环境配置

将通用Dockerfile重命名为Dockerfile.php以明确用途
添加PostgreSQL自定义镜像配置以支持pgvector扩展
拆分数据库初始化脚本为mysql和postgres专用版本
更新docker-compose配置以使用新的构建文件

local/init_env.sh

@@ -66,10 +66,12 @@ wget -O /home/app/nginx.conf https://raw.githubusercontent.com/shakenny/containe
 wget -O /home/app/conf.d/default.conf https://raw.githubusercontent.com/shakenny/containerized-stack/refs/heads/main/default.conf
 
 wget -O /home/app/mysql/conf.d/my.cnf https://raw.githubusercontent.com/shakenny/containerized-stack/refs/heads/main/my.cnf
-wget -O /home/app/mysql/conf.d/init.sql https://raw.githubusercontent.com/shakenny/containerized-stack/refs/heads/main/local/init.sql
+wget -O /home/app/mysql/conf.d/init.sql https://raw.githubusercontent.com/shakenny/containerized-stack/refs/heads/main/local/init_mysql.sql
 
 wget -O /home/app/redis/conf/redis.conf https://raw.githubusercontent.com/redis/redis/7.2/redis.conf
 
+wget -O /home/app/postgresql/init.sql https://raw.githubusercontent.com/shakenny/containerized-stack/refs/heads/main/local/init_postgres.sql
+
 # 修改Redis配置文件
 sed -i "s/bind 127.0.0.1 -::1/bind 0.0.0.0/g" /home/app/redis/conf/redis.conf
 sed -i "s/# requirepass foobared/requirepass \!Ybw324\!/g" /home/app/redis/conf/redis.conf