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

config/sanctum.php

@@ -1,8 +1,8 @@
 <?php
 
-use Laravel\Sanctum\Http\Middleware\AuthenticateSession;
 use Illuminate\Cookie\Middleware\EncryptCookies;
 use Illuminate\Foundation\Http\Middleware\ValidateCsrfToken;
+use Laravel\Sanctum\Http\Middleware\AuthenticateSession;
 use Laravel\Sanctum\Sanctum;
 
 return [