add blueprint files to git

database/factories/RegistrationFactory.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Database\Factories;
+
+use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Support\Str;
+use App\Models\Event;
+use App\Models\Participant;
+use App\Models\Registration;
+
+class RegistrationFactory extends Factory
+{
+    /**
+     * The name of the factory's corresponding model.
+     *
+     * @var string
+     */
+    protected $model = Registration::class;
+
+    /**
+     * Define the model's default state.
+     *
+     * @return array
+     */
+    public function definition(): array
+    {
+        return [
+            'event_id' => Event::factory(),
+            'participant_id' => Participant::factory(),
+            'active' => $this->faker->boolean,
+        ];
+    }
+}