Implement commands

app/Console/TestCommand.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Console;
+
+
+use Ardent\Undercurrent\Attribute\Command;
+use Ardent\Undercurrent\Console\BaseCommand;
+use Ardent\Undercurrent\Console\Output;
+
+#[Command('app:test')]
+class TestCommand extends BaseCommand
+{
+    protected function run(Output $output): void
+    {
+        $output->printLine('Hello, command!');
+    }
+}