feat: 完成后端-管理后台集成及部署配置

🚀 主要功能:
- 完善后端API服务层，实现完整的CRUD操作
- 开发管理后台所有核心页面 (仪表板、照片、分类、标签、用户、设置)
- 完成前后端完全集成，所有API接口正常对接
- 配置完整的CI/CD流水线，支持自动化部署

🎯 后端完善:
- 实现PhotoService, CategoryService, TagService, UserService
- 添加完整的API处理器和路由配置
- 支持Docker容器化部署
- 添加数据库迁移和健康检查

🎨 管理后台完成:
- 仪表板: 实时统计数据展示
- 照片管理: 完整的CRUD操作，支持批量处理
- 分类管理: 树形结构展示和管理
- 标签管理: 颜色标签和统计信息
- 用户管理: 角色权限控制
- 系统设置: 多标签配置界面
- 添加pre-commit代码质量检查

🔧 部署配置:
- Docker Compose完整配置
- 后端CI/CD流水线 (Docker部署)
- 管理后台CI/CD流水线 (静态文件部署)
- 前端CI/CD流水线优化
- 自动化脚本: 部署、备份、监控
- 完整的部署文档和运维指南

✅ 集成完成:
- 所有API接口正常连接
- 认证系统完整集成
- 数据获取和状态管理
- 错误处理和用户反馈
- 响应式设计优化

backend/docker-compose.yml

@@ -0,0 +1,140 @@
+version: '3.8'
+
+services:
+  # PostgreSQL 数据库
+  postgres:
+    image: postgres:15-alpine
+    container_name: photography_postgres
+    environment:
+      POSTGRES_DB: photography
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: ${DB_PASSWORD:-photography_password}
+      POSTGRES_INITDB_ARGS: "--encoding=UTF-8 --lc-collate=C --lc-ctype=C"
+    ports:
+      - "${DB_PORT:-5432}:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./migrations:/docker-entrypoint-initdb.d
+    networks:
+      - photography_network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+
+  # Redis 缓存
+  redis:
+    image: redis:7-alpine
+    container_name: photography_redis
+    ports:
+      - "${REDIS_PORT:-6379}:6379"
+    volumes:
+      - redis_data:/data
+    networks:
+      - photography_network
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+    command: redis-server --appendonly yes
+
+  # 后端 API 服务
+  backend:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: photography_backend
+    environment:
+      # 数据库配置
+      DB_HOST: postgres
+      DB_PORT: 5432
+      DB_USER: postgres
+      DB_PASSWORD: ${DB_PASSWORD:-photography_password}
+      DB_NAME: photography
+      DB_SSL_MODE: disable
+      
+      # Redis 配置
+      REDIS_HOST: redis
+      REDIS_PORT: 6379
+      REDIS_PASSWORD: ""
+      REDIS_DB: 0
+      
+      # JWT 配置
+      JWT_SECRET: ${JWT_SECRET:-your-super-secret-jwt-key-change-in-production}
+      JWT_EXPIRES_IN: 24h
+      
+      # 服务器配置
+      PORT: 8080
+      GIN_MODE: ${GIN_MODE:-release}
+      
+      # 文件上传配置
+      UPLOAD_TYPE: local
+      UPLOAD_PATH: /app/uploads
+      UPLOAD_BASE_URL: http://localhost:8080/uploads
+      UPLOAD_MAX_SIZE: 10485760  # 10MB
+      
+      # 日志配置
+      LOG_LEVEL: ${LOG_LEVEL:-info}
+      LOG_FORMAT: json
+    ports:
+      - "${API_PORT:-8080}:8080"
+    volumes:
+      - upload_data:/app/uploads
+      - ./configs:/app/configs:ro
+    networks:
+      - photography_network
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost:8080/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 30s
+
+  # Nginx 反向代理 (生产环境)
+  nginx:
+    image: nginx:alpine
+    container_name: photography_nginx
+    ports:
+      - "${HTTP_PORT:-80}:80"
+      - "${HTTPS_PORT:-443}:443"
+    volumes:
+      - ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
+      - ./nginx/conf.d:/etc/nginx/conf.d:ro
+      - upload_data:/var/www/uploads:ro
+      - ./ssl:/etc/nginx/ssl:ro
+    networks:
+      - photography_network
+    depends_on:
+      - backend
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "--no-verbose", "--tries=1", "--spider", "http://localhost/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+    profiles:
+      - production
+
+# 数据卷
+volumes:
+  postgres_data:
+    driver: local
+  redis_data:
+    driver: local
+  upload_data:
+    driver: local
+
+# 网络
+networks:
+  photography_network:
+    driver: bridge