feat: 增加内置节点注册任务；优化定时器代码结构；

extend/base/tools/controller/timer/SystemHostBase.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace base\tools\controller\timer;
+
+use app\common\controller\TimerController;
+use app\common\service\HostService;
+use think\facade\Db;
+use think\facade\Log;
+
+class SystemHostBase extends TimerController
+{
+    protected $frequency = 10;
+
+    public function do()
+    {
+        HostService::heartbeat();
+
+        return 'success';
+    }
+}