Robot id length from 8 to 6

assets/js/main.js

@@ -206,7 +206,7 @@ window.addEventListener('load', function() {
     $('.btn-robot-go').click(function() {
         // Get and validate the selected robot ID
         var robotId = $('#robot-id').val().trim();
-        if (robotId === '' || /^([a-zA-Z0-9]{8})$/.test(robotId) == false) {
+        if (robotId === '' || /^([a-zA-Z0-9]{6})$/.test(robotId) == false) {
             $('#robot-id, #robot-label').addClass('has-error');
             return;
         } else {