🎨 **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/EmailCampaignFactory.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\EmailCampaign;
+use Illuminate\Database\Eloquent\Factories\Factory;
+
+/**
+ * @extends Factory<EmailCampaign>
+ */
+class EmailCampaignFactory extends Factory
+{
+    protected $model = EmailCampaign::class;
+
+    public function definition(): array
+    {
+        return [
+            'name' => 'Bitcoin Newsletter '.fake()->unique()->numberBetween(1, 9999),
+            'list_file_name' => 'list_'.fake()->unique()->slug(2).'.csv',
+            'subject_prompt' => 'Schreibe einen ansprechenden Betreff über Bitcoin und Sound Money.',
+            'text_prompt' => 'Verfasse einen freundlichen Newsletter über die neuesten Bitcoin-Entwicklungen.',
+        ];
+    }
+}