move code to repository root

rector.php

@@ -0,0 +1,14 @@
+<?php declare(strict_types=1);
+
+use Lubiana\CodeQuality\LubiSetList;
+use Rector\Config\RectorConfig;
+
+return static function (RectorConfig $c): void {
+    $c->paths([__DIR__ . '/src', __DIR__ . '/config', __DIR__ . '/ecs.php', __DIR__ . '/rector.php']);
+
+    $c->importNames();
+
+    $c->sets([
+        LubiSetList::RECTOR,
+    ]);
+};