feat: new ServerReachabilityChanged event

app/Events/ServerReachabilityChanged.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Events;
+
+use App\Models\Server;
+use Illuminate\Foundation\Events\Dispatchable;
+
+class ServerReachabilityChanged
+{
+    use Dispatchable;
+
+    public function __construct(
+        public readonly Server $server
+    ) {
+        $this->server->isReachableChanged();
+    }
+}