refactor: align deployment with proxmox template

advanced-raid-calculator.service

@@ -0,0 +1,15 @@
+[Unit]
+Description=Advanced Raid Calculator Service
+After=network.target
+
+[Service]
+Type=simple
+User=www-data
+WorkingDirectory=/var/www/advanced-raid-calculator
+ExecStart=/usr/bin/node server.js
+Restart=always
+Environment=NODE_ENV=production
+Environment=PORT=4001
+
+[Install]
+WantedBy=multi-user.target