feat: add nordvpn wireguard sudo helper

skills/nordvpn-client/scripts/nordvpn-wireguard-helper.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+set -eu
+
+ACTION="${1:-}"
+case "$ACTION" in
+  probe|up|down)
+    ;;
+  *)
+    echo "Usage: nordvpn-wireguard-helper.sh [probe|up|down]" >&2
+    exit 2
+    ;;
+esac
+
+WG_QUICK="/opt/homebrew/bin/wg-quick"
+WG_CONFIG="/Users/stefano/.nordvpn-client/wireguard/nordvpnctl.conf"
+PATH="/opt/homebrew/bin:/usr/bin:/bin:/usr/sbin:/sbin"
+export PATH
+
+if [ "$ACTION" = "probe" ]; then
+  test -x "$WG_QUICK"
+  exit 0
+fi
+
+exec "$WG_QUICK" "$ACTION" "$WG_CONFIG"