feat: 实现后端和管理后台基础架构

## 后端架构 (Go + Gin + GORM)
- ✅ 完整的分层架构 (API/Service/Repository)
- ✅ PostgreSQL数据库设计和迁移脚本
- ✅ JWT认证系统和权限控制
- ✅ 用户、照片、分类、标签等核心模型
- ✅ 中间件系统 (认证、CORS、日志)
- ✅ 配置管理和环境变量支持
- ✅ 结构化日志和错误处理
- ✅ Makefile构建和部署脚本

## 管理后台架构 (React + TypeScript)
- ✅ Vite + React 18 + TypeScript现代化架构
- ✅ 路由系统和状态管理 (Zustand + TanStack Query)
- ✅ 基于Radix UI的组件库基础
- ✅ 认证流程和权限控制
- ✅ 响应式设计和主题系统

## 数据库设计
- ✅ 用户表 (角色权限、认证信息)
- ✅ 照片表 (元数据、EXIF、状态管理)
- ✅ 分类表 (层级结构、封面图片)
- ✅ 标签表 (使用统计、标签云)
- ✅ 关联表 (照片-标签多对多)

## 技术特点
- 🚀 高性能: Gin框架 + GORM ORM
- 🔐 安全: JWT认证 + 密码加密 + 权限控制
- 📊 监控: 结构化日志 + 健康检查
- 🎨 现代化: React 18 + TypeScript + Vite
- 📱 响应式: Tailwind CSS + Radix UI

参考文档: docs/development/saved-docs/

backend/configs/config.yaml

@@ -0,0 +1,76 @@
+app:
+  name: "photography-backend"
+  version: "1.0.0"
+  environment: "development"
+  port: 8080
+  debug: true
+
+database:
+  host: "localhost"
+  port: 5432
+  username: "postgres"
+  password: "password"
+  database: "photography"
+  ssl_mode: "disable"
+  max_open_conns: 100
+  max_idle_conns: 10
+  conn_max_lifetime: 300
+
+redis:
+  host: "localhost"
+  port: 6379
+  password: ""
+  database: 0
+  pool_size: 100
+  min_idle_conns: 10
+
+jwt:
+  secret: "your-secret-key-change-in-production"
+  expires_in: "24h"
+  refresh_expires_in: "168h"
+
+storage:
+  type: "local" # local, s3, minio
+  local:
+    base_path: "./uploads"
+    base_url: "http://localhost:8080/uploads"
+  s3:
+    region: "us-east-1"
+    bucket: "photography-uploads"
+    access_key: ""
+    secret_key: ""
+    endpoint: ""
+
+upload:
+  max_file_size: 52428800  # 50MB
+  allowed_types: ["image/jpeg", "image/png", "image/gif", "image/webp", "image/tiff"]
+  thumbnail_sizes:
+    - name: "small"
+      width: 300
+      height: 300
+    - name: "medium" 
+      width: 800
+      height: 600
+    - name: "large"
+      width: 1200
+      height: 900
+
+logger:
+  level: "debug"
+  format: "json"
+  output: "file"
+  filename: "logs/app.log"
+  max_size: 100
+  max_age: 7
+  compress: true
+
+cors:
+  allowed_origins: ["http://localhost:3000", "https://photography.iriver.top"]
+  allowed_methods: ["GET", "POST", "PUT", "DELETE", "PATCH", "OPTIONS"]
+  allowed_headers: ["Origin", "Content-Length", "Content-Type", "Authorization"]
+  allow_credentials: true
+
+rate_limit:
+  enabled: true
+  requests_per_minute: 100
+  burst: 50