feat: 小菜记账 v1.0 - 完整功能实现

核心功能：
- 记账CRUD（支出/收入/分类/备注/日期）
- 统计分析（概览/分类占比/每日趋势）
- 预算管理（按月设置/进度条/超支提醒）
- 数据导出CSV

安全与认证：
- HMAC-SHA256签名token认证
- 用户数据隔离
- 输入验证与错误处理
- CORS配置

前端优化：
- 骨架屏加载
- 账单按日期分组
- 预算页面重构（快捷预设+Numpad）
- SvgIcon组件（H5+微信双端适配）
- 下拉刷新

后端优化：
- 共享日期工具函数
- 数据库连接池优化
- 健康检查端点
- 优雅关闭处理

技术栈：
- 前端：Uni-app (Vue 3 + Pinia)
- 后端：Node.js + Express + MySQL

deploy/backup.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+# 数据库备份脚本 (每天执行)
+
+BACKUP_DIR="/var/backups/xiaocai"
+DATE=$(date +%Y%m%d_%H%M%S)
+
+mkdir -p "$BACKUP_DIR"
+
+mysqldump -u xiaocai -pxiaocai123 xiaocai | gzip > "$BACKUP_DIR/xiaocai_$DATE.sql.gz"
+
+# 保留最近 7 天的备份
+find "$BACKUP_DIR" -name "*.sql.gz" -mtime +7 -delete
+
+echo "备份完成: $BACKUP_DIR/xiaocai_$DATE.sql.gz"

deploy/deploy.sh

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+#!/bin/bash
+# 小菜记账部署脚本
+
+set -e
+
+SERVER_DIR="/var/www/xiaocai"
+LOG_DIR="/var/log/xiaocai"
+
+echo "=== 开始部署 ==="
+
+# 进入项目目录
+cd "$(dirname "$0")/.."
+
+# 构建服务端
+echo "1/4 构建服务端..."
+cd server
+npm install
+npm run build
+cd ..
+
+# 复制文件到服务器目录
+echo "2/4 复制文件..."
+cp -r server/dist "$SERVER_DIR/"
+cp -r server/node_modules "$SERVER_DIR/"
+cp server/package.json "$SERVER_DIR/"
+cp deploy/ecosystem.config.js "$SERVER_DIR/"
+
+# 初始化数据库
+echo "3/4 初始化数据库..."
+cd "$SERVER_DIR"
+mysql -u xiaocai -pxiaocai123 xiaocai < dist/db/schema.sql
+mysql -u xiaocai -pxiaocai123 xiaocai < dist/db/seed.sql 2>/dev/null || true
+cd -
+
+# 配置 Nginx
+echo "4/4 配置 Nginx..."
+sudo cp deploy/nginx.conf /etc/nginx/sites-available/xiaocai
+sudo ln -sf /etc/nginx/sites-available/xiaocai /etc/nginx/sites-enabled/
+sudo rm -f /etc/nginx/sites-enabled/default
+sudo nginx -t
+sudo systemctl reload nginx
+
+# 重启服务
+echo "重启 PM2 服务..."
+cd "$SERVER_DIR"
+pm2 delete xiaocai-server 2>/dev/null || true
+pm2 start ecosystem.config.js
+pm2 save
+
+echo ""
+echo "=== 部署完成 ==="
+echo "服务地址: http://your-domain.com"
+echo "API 健康检查: http://your-domain.com/api/health"
+echo ""
+echo "查看日志: pm2 logs xiaocai-server"
+echo "查看状态: pm2 status"

deploy/ecosystem.config.js

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+module.exports = {
+  apps: [
+    {
+      name: 'xiaocai-server',
+      script: './dist/index.js',
+      instances: 1,
+      autorestart: true,
+      watch: false,
+      max_memory_restart: '300M',
+      env: {
+        NODE_ENV: 'production',
+        PORT: 3000
+      },
+      error_file: '/var/log/xiaocai/error.log',
+      out_file: '/var/log/xiaocai/out.log',
+      log_date_format: 'YYYY-MM-DD HH:mm:ss'
+    }
+  ]
+}

deploy/nginx.conf

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+server {
+    listen 80;
+    server_name your-domain.com;
+
+    # 小程序 API
+    location /api/ {
+        proxy_pass http://127.0.0.1:3000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # 健康检查
+    location /health {
+        proxy_pass http://127.0.0.1:3000;
+    }
+
+    # SSL 配置 (上线前取消注释)
+    # listen 443 ssl;
+    # ssl_certificate /etc/letsencrypt/live/your-domain.com/fullchain.pem;
+    # ssl_certificate_key /etc/letsencrypt/live/your-domain.com/privkey.pem;
+
+    # HTTP 重定向到 HTTPS
+    # return 301 https://$host$request_uri;
+}

deploy/setup.sh

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+#!/bin/bash
+# 小菜记账服务器初始化脚本
+# 适用于 Ubuntu 22.04 LTS + 阿里云 2H2G
+
+set -e
+
+echo "=== 小菜记账服务器初始化 ==="
+
+# 更新系统
+echo "1/8 更新系统包..."
+sudo apt update && sudo apt upgrade -y
+
+# 安装 Node.js 20
+echo "2/8 安装 Node.js 20..."
+curl -fsSL https://deb.nodesource.com/setup_20.x | sudo -E bash -
+sudo apt install -y nodejs
+
+# 安装 MySQL 8.0
+echo "3/8 安装 MySQL 8.0..."
+sudo apt install -y mysql-server
+
+# 安全配置 MySQL
+echo "4/8 配置 MySQL..."
+sudo mysql -e "ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root_password';"
+sudo mysql -e "CREATE DATABASE IF NOT EXISTS xiaocai DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;"
+sudo mysql -e "CREATE USER IF NOT EXISTS 'xiaocai'@'localhost' IDENTIFIED BY 'xiaocai123';"
+sudo mysql -e "GRANT ALL PRIVILEGES ON xiaocai.* TO 'xiaocai'@'localhost';"
+sudo mysql -e "FLUSH PRIVILEGES;"
+
+# 安装 Nginx
+echo "5/8 安装 Nginx..."
+sudo apt install -y nginx
+
+# 安装 PM2
+echo "6/8 安装 PM2..."
+sudo npm install -g pm2
+
+# 创建部署目录
+echo "7/8 创建部署目录..."
+sudo mkdir -p /var/www/xiaocai
+sudo mkdir -p /var/log/xiaocai
+sudo chown -R $USER:$USER /var/www/xiaocai
+
+# 配置防火墙
+echo "8/8 配置防火墙..."
+sudo ufw allow 22/tcp
+sudo ufw allow 80/tcp
+sudo ufw allow 443/tcp
+sudo ufw --force enable
+
+echo ""
+echo "=== 服务器初始化完成 ==="
+echo "MySQL root 密码: root_password"
+echo "MySQL xiaocai 密码: xiaocai123"
+echo "请修改 deploy/ecosystem.config.js 中的数据库密码"
+echo ""
+echo "下一步: ./deploy.sh"