chore: improves type coverage

rector.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+use Rector\CodeQuality\Rector\Class_\InlineConstructorDefaultToPropertyRector;
+use Rector\Config\RectorConfig;
+use Rector\Set\ValueObject\LevelSetList;
+use Rector\Set\ValueObject\SetList;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->paths([
+        __DIR__.'/src',
+    ]);
+
+    $rectorConfig->rules([
+        InlineConstructorDefaultToPropertyRector::class,
+    ]);
+
+    $rectorConfig->sets([
+        LevelSetList::UP_TO_PHP_81,
+        SetList::CODE_QUALITY,
+        SetList::DEAD_CODE,
+        SetList::EARLY_RETURN,
+        SetList::TYPE_DECLARATION,
+        SetList::PRIVATIZATION,
+    ]);
+};