fix: remove MySQL from docker-compose, use external database service

docker-compose.yml

@@ -9,44 +9,11 @@ services:
       - "3000:3000"
     environment:
       - NODE_ENV=production
-      - DB_HOST=db
-      - DB_PORT=3306
-      - DB_USER=${DB_USER:-root}
-      - DB_PASSWORD=${DB_PASSWORD:-123456}
-      - DB_NAME=${DB_NAME:-recipe_tools}
+      - DB_HOST=${DB_HOST}
+      - DB_PORT=${DB_PORT:-3306}
+      - DB_USER=${DB_USER}
+      - DB_PASSWORD=${DB_PASSWORD}
+      - DB_NAME=${DB_NAME}
       - AI_API_KEY=${AI_API_KEY}
       - AI_BASE_URL=${AI_BASE_URL:-https://api.openai.com/v1}
       - AI_MODEL=${AI_MODEL:-gpt-3.5-turbo}
-    depends_on:
-      db:
-        condition: service_healthy
-    networks:
-      - recipe_network
-
-  db:
-    image: mysql:8.0
-    container_name: recipe_tool_db
-    restart: unless-stopped
-    environment:
-      - MYSQL_ROOT_PASSWORD=${DB_PASSWORD:-123456}
-      - MYSQL_DATABASE=${DB_NAME:-recipe_tools}
-    ports:
-      - "3306:3306"
-    volumes:
-      - mysql_data:/var/lib/mysql
-      # 初始化脚本（可选）
-      # - ./docker/mysql/init.sql:/docker-entrypoint-initdb.d/init.sql
-    healthcheck:
-      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-    networks:
-      - recipe_network
-
-networks:
-  recipe_network:
-    driver: bridge
-
-volumes:
-  mysql_data: