🎨 **Style:** Fixed indentation inconsistencies in meetup_user migration file.

🛠️ **Factory:** Created factories for `TwitterAccount`, `EmailCampaign`, `EmailTexts`, and `BookCase`.
✨ **Helper:** Added `NostrHelper` with methods for generating fake/mocked Nostr data.
⬆️ **Dependencies:** Updated multiple Composer dependencies including `laravel/framework`, `astrotomic/laravel-translatable`, and others to their latest versions.

database/factories/RegistrationFactory.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\CourseEvent;
+use App\Models\Participant;
+use App\Models\Registration;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<Registration>
+ */
+class RegistrationFactory extends Factory
+{
+    protected $model = Registration::class;
+
+    public function definition(): array
+    {
+        return [
+            'course_event_id' => CourseEvent::factory(),
+            'participant_id' => Participant::factory(),
+            'active' => true,
+        ];
+    }
+}