fix: standardize language to English in README and AlertSettings

feat: add 24 model factories for Help, Shop, Community, Game, User domains

- Translate mixed Dutch/English strings in README.md and AlertSettings.php
- Add HasFactory trait to 23 models
- Create factories for Help (6), Shop (4), Community (5), Game (2), User (7)

database/factories/User/ReferralFactory.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Database\Factories\User;
+
+use App\Models\User;
+use App\Models\User\Referral;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+class ReferralFactory extends Factory
+{
+    protected $model = Referral::class;
+
+    public function definition(): array
+    {
+        return [
+            'user_id' => User::factory(),
+            'referred_user_id' => User::factory(),
+            'referred_user_ip' => $this->faker->ipv4(),
+        ];
+    }
+}