✨ Refactor components and models:

- 🔥 Removed deprecated `placeholder-pattern` component.
- 🧹 Simplified and cleaned up Blade views by removing unused comments and sections.
- 🗂️ Extracted `SetsCreatedBy` concern for DRY and reused it across models.
- 🔧 Consolidated configuration for Horizon `authorized_nostr_keys`.
- 🧪 Migrated media conversion to use new Spatie enums for clarity.
- ♻️ Replaced repetitive link rendering with dynamic rendering in meetups and services views.

config/horizon.php

@@ -85,6 +85,22 @@ return [
 
     'middleware' => ['web'],
 
+    /*
+    |--------------------------------------------------------------------------
+    | Authorized Nostr Keys
+    |--------------------------------------------------------------------------
+    |
+    | These Nostr public keys (npub) are allowed to access the Horizon
+    | dashboard via the "viewHorizon" gate in non-local environments.
+    |
+    */
+
+    'authorized_nostr_keys' => [
+        'npub1kz50hl2fk8rkkax3mv8kzx7vdhh3nmuegncsaj8r23w2a49nf3wsne6ejy',
+        'npub1pt0kw36ue3w2g4haxq3wgm6a2fhtptmzsjlc2j2vphtcgle72qesgpjyc6',
+        'npub1qwj482ffpvnwy4g7twejs4ckgnag9yxpjndqslk6juagmngwwhfsqfe5vq',
+    ],
+
     /*
     |--------------------------------------------------------------------------
     | Queue Wait Time Thresholds