feat: add script for Overte domain authentication with username and password input

run_with_auth.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+# Run stardust-overte-client with authentication
+
+echo "Overte Domain Authentication"
+echo "=============================="
+echo ""
+echo -n "Username: "
+read username
+echo -n "Password: "
+read -s password
+echo ""
+echo ""
+
+export OVERTE_USERNAME="$username"
+export OVERTE_PASSWORD="$password"
+
+echo "Connecting to Overte domain..."
+./build/stardust-overte-client