feat: fase 2 backend — crowd types, persons, sections, shifts, invite flow

- Crowd Types + Persons CRUD (73 tests)
- Festival Sections + Time Slots + Shifts CRUD met assign/claim flow (84 tests)
- Invite Flow + Member Management met InvitationService (109 tests)
- Schema v1.6 migraties volledig uitgevoerd
- DevSeeder bijgewerkt met crowd types voor testorganisatie

api/database/factories/PersonFactory.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Database\Factories;
+
+use App\Models\CrowdType;
+use App\Models\Event;
+use App\Models\Person;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/** @extends Factory<Person> */
+final class PersonFactory extends Factory
+{
+    /** @return array<string, mixed> */
+    public function definition(): array
+    {
+        return [
+            'event_id' => Event::factory(),
+            'crowd_type_id' => CrowdType::factory(),
+            'name' => fake('nl_NL')->name(),
+            'email' => fake()->unique()->safeEmail(),
+            'phone' => fake('nl_NL')->phoneNumber(),
+            'status' => 'pending',
+            'is_blacklisted' => false,
+            'custom_fields' => null,
+        ];
+    }
+
+    public function approved(): static
+    {
+        return $this->state(fn () => ['status' => 'approved']);
+    }
+}