feat: add install and domain scripts for erpnext

erpnext/domain.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+APP_UPSTREAM_PORT="${EXC_APP_UPSTREAM_PORT:-8080}"
+DOMAIN="${1}"
+
+if [ -z "${DOMAIN}" ]; then
+  echo "Error: URL argument is required. Example:" >&2
+  echo "domain.sh sub.example.com" >&2
+  exit 1
+fi
+
+cat > /etc/caddy/Caddyfile <<EOF
+https://${DOMAIN} {
+        reverse_proxy 127.0.0.1:${APP_UPSTREAM_PORT}
+}
+EOF
+
+echo "Caddyfile updated"
+
+systemctl enable caddy
+systemctl reload caddy