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/docker-compose.yml

@@ -32,7 +32,7 @@ services:
   php:
     build:
       context: .
-      dockerfile: Dockerfile
+      dockerfile: Dockerfile.php
       args:
         PHP_VERSION: "8.2"
     container_name: php
@@ -45,7 +45,7 @@ services:
   php74:
     build:
       context: .
-      dockerfile: Dockerfile
+      dockerfile: Dockerfile.php
       args:
         PHP_VERSION: "7.4"
     container_name: php74
@@ -91,7 +91,9 @@ services:
       - docker_network1
 
   postgres:
-    image: postgres:14
+    build:
+      context: .
+      dockerfile: Dockerfile.postgres
     container_name: postgresql
     restart: always
     environment:
@@ -101,6 +103,7 @@ services:
     ports:
       - "5432:5432"
     volumes:
-      - ./postgresql:/var/lib/postgresql
+      - ./postgresql/data:/var/lib/postgresql/data
+      - ./postgresql/init.sql:/docker-entrypoint-initdb.d/init.sql
     networks:
       - docker_network1