feat: Prepare Zemailnator for Dokploy deployment

- Add highly optimized Dockerfile with Nginx and PHP-FPM 8.4
- Add docker-compose.yml configured with Redis and MariaDB 10.11
- Implement entrypoint.sh and supervisord.conf for background workers
- Refactor legacy IMAP scripts into scheduled Artisan Commands
- Secure app by removing old routes with hardcoded basic auth credentials
- Configure email attachments to use Laravel Storage instead of insecure public/tmp

app/Livewire/Dashboard/Dashboard.php

@@ -2,6 +2,7 @@
 
 namespace App\Livewire\Dashboard;
 
+use App\Models\Subscription;
 use App\Models\UsageLog;
 use Exception;
 use Illuminate\Http\Request;
@@ -10,7 +11,6 @@ use Illuminate\Support\Facades\Date;
 use Illuminate\Support\Facades\Log;
 use Livewire\Component;
 use Stripe\StripeClient;
-use App\Models\Subscription;
 
 class Dashboard extends Component
 {