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/Filament/Widgets/StatsOverview.php

@@ -2,8 +2,6 @@
 
 namespace App\Filament\Widgets;
 
-use Illuminate\Support\Facades\Date;
-use Illuminate\Support\Facades\DB;
 use App\Models\Log;
 use App\Models\Meta;
 use App\Models\PremiumEmail;
@@ -11,6 +9,8 @@ use App\Models\Ticket;
 use App\Models\User;
 use Filament\Widgets\StatsOverviewWidget as BaseWidget;
 use Filament\Widgets\StatsOverviewWidget\Stat;
+use Illuminate\Support\Facades\Date;
+use Illuminate\Support\Facades\DB;
 
 class StatsOverview extends BaseWidget
 {