feat(timer): 新增配置同步到数据库及主节点选举

T5: TimerServiceBase.syncConfigToDatabase() - syncs task config to DB
T6: HostServiceBase - auto master election, stale node detection,
    getMasterNode/setMasterNode methods

extend/base/common/command/TimerBase.php

@@ -63,6 +63,9 @@ class TimerBase extends Command
             $output->writeln('站点域名：' . $host);
             $site_host = parse_url($host, PHP_URL_HOST);
 
+            // 同步配置到数据库
+            TimerService::syncConfigToDatabase();
+
             // 设置配置的任务
             $timer_service = new TimerService();
             $request_list = $timer_service->generateAllRequestList();