feat: 添加部署脚本和文档并优化Kafka消费者配置

- 添加部署相关脚本(deploy.bat/update.bat/package.bat)和文档(deployment.md/package-guide.md)
 - 新增PM2配置文件(ecosystem.config.js/ecosystem.config.cjs)
 - 优化Kafka消费者配置支持动态fromOffset
 - 添加环境检查脚本(check-env.js)
 - 更新.gitignore添加release目录
 - 补充.env.example配置文件

ecosystem.config.cjs

@@ -0,0 +1,31 @@
+module.exports = {
+  apps: [{
+    name: 'bls-heartbeat',
+    script: 'dist/index.es.js',
+    instances: 1,
+    exec_mode: 'fork',
+    autorestart: true,
+    watch: false,
+    max_memory_restart: '1G',
+    env: {
+      NODE_ENV: 'production',
+      PORT: 3000
+    },
+    env_development: {
+      NODE_ENV: 'development',
+      PORT: 3000
+    },
+    error_file: './logs/error.log',
+    out_file: './logs/out.log',
+    log_date_format: 'YYYY-MM-DD HH:mm:ss Z',
+    merge_logs: true,
+    time: true,
+    min_uptime: '10s',
+    max_restarts: 10,
+    restart_delay: 4000,
+    kill_timeout: 5000,
+    listen_timeout: 10000,
+    wait_ready: true,
+    shutdown_with_message: true
+  }]
+};