feat: 智能客服系统基础架构完成

✅ 已完成功能：
1. 项目基础设施和Docker开发环境
2. 前端React 18 + TypeScript架构
3. 后端Golang + Gin框架
4. 多租户数据库设计
5. 完整API路由系统
6. 智能客服聊天界面
7. 详细文档和部署指南

🔧 技术栈：
- 前端：React 18, TypeScript, Vite, Zustand
- 后端：Golang, Gin, GORM, PostgreSQL
- 部署：Docker, Docker Compose

🎨 设计规范：
- 无渐变色，无紫色
- 简洁专业的中性色系
- 响应式布局

📊 状态：
- 前端开发服务器：http://localhost:5173
- 后端API服务：http://localhost:8080
- 数据库：PostgreSQL + Redis
- 完整的多租户架构

作者：小弟 (大哥的AI助手)
日期：2026-02-27

docker-compose.yml

@@ -0,0 +1,102 @@
+version: '3.8'
+
+services:
+  # PostgreSQL数据库
+  postgres:
+    image: postgres:15-alpine
+    container_name: customer-service-db
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_PASSWORD: postgres
+      POSTGRES_DB: customer_service
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+      - ./backend/migrations:/docker-entrypoint-initdb.d
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # Redis缓存
+  redis:
+    image: redis:7-alpine
+    container_name: customer-service-redis
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    command: redis-server --appendonly yes
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  # 后端服务
+  backend:
+    build:
+      context: ./backend
+      dockerfile: Dockerfile.dev
+    container_name: customer-service-backend
+    ports:
+      - "8080:8080"
+      - "8081:8081" # WebSocket端口
+    environment:
+      - SERVER_PORT=8080
+      - SERVER_MODE=debug
+      - DB_HOST=postgres
+      - DB_PORT=5432
+      - DB_USER=postgres
+      - DB_PASSWORD=postgres
+      - DB_NAME=customer_service
+      - REDIS_HOST=redis
+      - REDIS_PORT=6379
+      - JWT_SECRET=your-secret-key-change-in-production
+      - AI_PROVIDER=openai
+      - AI_API_KEY=${AI_API_KEY:-}
+      - WS_PORT=8081
+    volumes:
+      - ./backend:/app
+      - go_modules:/go/pkg/mod
+    depends_on:
+      postgres:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
+    restart: unless-stopped
+
+  # 前端服务
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile.dev
+    container_name: customer-service-frontend
+    ports:
+      - "3000:3000"
+    environment:
+      - VITE_API_URL=http://localhost:8080
+      - VITE_WS_URL=ws://localhost:8081
+    volumes:
+      - ./frontend:/app
+      - /app/node_modules
+    depends_on:
+      - backend
+    restart: unless-stopped
+
+  # 管理界面（可选）
+  adminer:
+    image: adminer
+    container_name: customer-service-adminer
+    ports:
+      - "8082:8080"
+    depends_on:
+      - postgres
+    restart: unless-stopped
+
+volumes:
+  postgres_data:
+  redis_data:
+  go_modules: