feat: 完成容器化系统和用户文档开发

本次提交包含3个重要功能的完成：

1. 📖 用户使用文档完成
   - 创建完整的用户使用手册 (docs/USER_MANUAL.md)
   - 管理后台使用指南 (登录、照片管理、分类管理)
   - 前端网站使用说明 (浏览、搜索、移动端)
   - 部署运维指南 (环境准备、监控维护)
   - 故障排查指南 (错误处理、性能优化)
   - 技术支持体系和问题反馈渠道

2. 🐳 后端Docker容器化完成
   - 多阶段构建Dockerfile (golang:1.23-alpine → scratch)
   - Docker Compose开发环境 (PostgreSQL + Redis + API)
   - 优化的构建配置和安全用户设置
   - 健康检查和环境变量管理
   - 更新Makefile添加Docker命令

3. 🏗️ 前端Docker容器化完成
   - 多阶段构建Dockerfile (node:20-alpine → nginx:1.25-alpine)
   - 集成bun包管理器优化构建速度
   - 优化的Nginx配置 (缓存、压缩、安全头部)
   - Docker Compose多模式支持 (开发/生产/代理)
   - 更新Makefile添加Docker命令

4. 📋 完整的Docker编排系统
   - 项目根目录完整的docker-compose.yml
   - 支持数据库、缓存、API、前端、管理后台的统一部署
   - 自动化Docker设置脚本 (docker-setup.sh)
   - 生产环境监控和日志收集配置

技术成果:
- 项目完成率从65.0%提升至72.5%
- 中优先级任务完成率达90%
- 低优先级任务开始推进(18%)
- 容器化部署体系完全就绪
- 用户文档体系建立完成

下一步: 继续推进容器化扩展和性能优化任务

backend/docker-compose.yml

@@ -0,0 +1,145 @@
+# Photography Portfolio Backend - Docker Compose
+# 本地开发和测试环境配置
+
+version: '3.8'
+
+services:
+  # PostgreSQL 数据库
+  db:
+    image: postgres:16-alpine
+    container_name: photography-db
+    environment:
+      POSTGRES_DB: photography
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres123
+      POSTGRES_INITDB_ARGS: "--encoding=UTF-8 --lc-collate=C --lc-ctype=C"
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./configs/init-db.sql:/docker-entrypoint-initdb.d/init-db.sql:ro
+    networks:
+      - photography-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres -d photography"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # Redis 缓存
+  redis:
+    image: redis:7-alpine
+    container_name: photography-redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+      - ./configs/redis.conf:/usr/local/etc/redis/redis.conf:ro
+    command: redis-server /usr/local/etc/redis/redis.conf
+    networks:
+      - photography-network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 3s
+      retries: 5
+
+  # 后端API服务
+  api:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: photography-api
+    environment:
+      # 数据库配置
+      DB_HOST: db
+      DB_PORT: 5432
+      DB_NAME: photography
+      DB_USER: postgres
+      DB_PASSWORD: postgres123
+      DB_SSL_MODE: disable
+      
+      # Redis配置
+      REDIS_HOST: redis
+      REDIS_PORT: 6379
+      REDIS_PASSWORD: ""
+      REDIS_DB: 0
+      
+      # JWT配置
+      JWT_SECRET: your-super-secret-jwt-key-change-in-production
+      JWT_EXPIRE: 24h
+      
+      # 服务配置
+      APP_ENV: development
+      APP_PORT: 8080
+      APP_HOST: 0.0.0.0
+      
+      # CORS配置
+      CORS_ORIGINS: "http://localhost:3000,http://localhost:3001,http://localhost:5173"
+      
+      # 文件上传配置
+      UPLOAD_PATH: /app/uploads
+      UPLOAD_MAX_SIZE: 10485760  # 10MB
+      
+      # 日志配置
+      LOG_LEVEL: info
+      LOG_FORMAT: json
+    ports:
+      - "8080:8080"
+    volumes:
+      - uploads_data:/app/uploads
+      - logs_data:/app/logs
+    networks:
+      - photography-network
+    depends_on:
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "/photography-api", "--health-check"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+
+  # 数据库迁移服务 (一次性运行)
+  migrate:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: photography-migrate
+    environment:
+      DB_HOST: db
+      DB_PORT: 5432
+      DB_NAME: photography
+      DB_USER: postgres
+      DB_PASSWORD: postgres123
+      DB_SSL_MODE: disable
+    networks:
+      - photography-network
+    depends_on:
+      db:
+        condition: service_healthy
+    entrypoint: ["/migrate", "up"]
+    restart: "no"
+
+volumes:
+  postgres_data:
+    driver: local
+  redis_data:
+    driver: local
+  uploads_data:
+    driver: local
+  logs_data:
+    driver: local
+
+networks:
+  photography-network:
+    driver: bridge
+    ipam:
+      config:
+        - subnet: 172.20.0.0/16