添加 IntelliJ IDEA 项目配置文件

backend/.env.example

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+# 应用配置
+NODE_ENV=development
+PORT=3001
+APP_NAME=活牛采购智能数字化系统
+
+# 数据库配置
+DB_HOST=129.211.213.226
+DB_PORT=9527
+DB_NAME=jiebandata
+DB_USER=root
+DB_PASSWORD=aiotAiot123!
+DB_DIALECT=mysql
+
+# Redis配置
+REDIS_HOST=localhost
+REDIS_PORT=6379
+REDIS_PASSWORD=
+REDIS_DB=0
+
+# JWT配置
+JWT_SECRET=your_jwt_secret_key_here
+JWT_EXPIRES_IN=24h
+JWT_REFRESH_EXPIRES_IN=7d
+
+# 文件上传配置
+UPLOAD_PATH=./uploads
+MAX_FILE_SIZE=50MB
+ALLOWED_FILE_TYPES=jpg,jpeg,png,gif,pdf,doc,docx,xls,xlsx,mp4,avi
+
+# 日志配置
+LOG_LEVEL=info
+LOG_FILE=./logs/app.log
+
+# 短信配置
+SMS_PROVIDER=aliyun
+SMS_ACCESS_KEY=
+SMS_SECRET_KEY=
+
+# 支付配置
+PAYMENT_PROVIDER=wechat
+WECHAT_APPID=
+WECHAT_SECRET=
+WECHAT_MERCHANT_ID=
+WECHAT_API_KEY=
+
+# WebSocket配置
+WS_PORT=3002
+
+# 监控配置
+ENABLE_MONITORING=true
+MONITORING_TOKEN=
+
+# 邮件配置
+SMTP_HOST=
+SMTP_PORT=587
+SMTP_USER=
+SMTP_PASS=
+
+# API限流配置
+RATE_LIMIT_WINDOW=15
+RATE_LIMIT_MAX_REQUESTS=100