finishes 13 and 14

database/factories/QuestionGroupFactory.php

@@ -0,0 +1,31 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Database\Factories;
+
+use App\Models\Category;
+use App\Models\QuestionGroup;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * Factory for generating QuestionGroup test data.
+ *
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\QuestionGroup>
+ */
+final class QuestionGroupFactory extends Factory
+{
+    protected $model = QuestionGroup::class;
+
+    /**
+     * Define the model's default state.
+     */
+    public function definition(): array
+    {
+        return [
+            'category_id' => Category::factory(),
+            'name' => fake()->words(3, true),
+            'sort_order' => fake()->numberBetween(0, 10),
+        ];
+    }
+}