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

.docker/entrypoint.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+set -e
+
+echo "Storage symlink..."
+php artisan storage:link || true
+
+echo "Optimize cache..."
+php artisan optimize:clear
+php artisan config:cache
+php artisan route:cache
+php artisan view:cache
+
+echo "Running migrations..."
+php artisan migrate --force || true
+
+# Pass hand off to supervisor
+exec /usr/bin/supervisord -c /etc/supervisor/conf.d/supervisord.conf

.docker/nginx.conf

@@ -0,0 +1,32 @@
+server {
+    listen 80;
+    server_name _;
+    root /var/www/public;
+
+    add_header X-Frame-Options "SAMEORIGIN";
+    add_header X-Content-Type-Options "nosniff";
+
+    index index.php;
+
+    charset utf-8;
+
+    location / {
+        try_files $uri $uri/ /index.php?$query_string;
+    }
+
+    location = /favicon.ico { access_log off; log_not_found off; }
+    location = /robots.txt  { access_log off; log_not_found off; }
+
+    error_page 404 /index.php;
+
+    location ~ \.php$ {
+        fastcgi_pass 127.0.0.1:9000;
+        fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
+        include fastcgi_params;
+        fastcgi_hide_header X-Powered-By;
+    }
+
+    location ~ /\.(?!well-known).* {
+        deny all;
+    }
+}

.docker/supervisord.conf

@@ -0,0 +1,51 @@
+[supervisord]
+nodaemon=true
+user=root
+logfile=/var/log/supervisor/supervisord.log
+pidfile=/var/run/supervisord.pid
+
+[program:php-fpm]
+command=php-fpm -F
+autostart=true
+autorestart=true
+priority=5
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+[program:nginx]
+command=nginx -g 'daemon off;'
+autostart=true
+autorestart=true
+priority=10
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+stderr_logfile=/dev/stderr
+stderr_logfile_maxbytes=0
+
+[program:laravel-worker]
+process_name=%(program_name)s_%(process_num)02d
+command=php /var/www/artisan queue:work --sleep=3 --tries=3 --max-time=3600
+autostart=true
+autorestart=true
+stopasgroup=true
+killasgroup=true
+user=www-data
+numprocs=1
+redirect_stderr=true
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
+
+[program:laravel-scheduler]
+process_name=%(program_name)s_%(process_num)02d
+command=php /var/www/artisan schedule:work
+autostart=true
+autorestart=true
+stopasgroup=true
+killasgroup=true
+user=www-data
+numprocs=1
+redirect_stderr=true
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0