✨ 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.

app/Models/Concerns/SetsCreatedBy.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace App\Models\Concerns;
+
+use Illuminate\Database\Eloquent\Model;
+
+trait SetsCreatedBy
+{
+    public static function bootSetsCreatedBy(): void
+    {
+        static::creating(function (Model $model): void {
+            if (auth()->check() && ! $model->created_by) {
+                $model->created_by = auth()->id();
+            }
+        });
+    }
+}