fix(helpdesk): move resolution time to last column in performance grid

Reorder: Top customers | Top categories | Resolution time.
More logical flow — pick a filter on the left, see the result on the right.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

modules/helpdesk/web/js/helpdesk-team.js

@@ -255,7 +255,6 @@ if (container) {
     timeList.appendChild(maxLi);
 
     timeStats.appendChild(timeList);
-    grid.appendChild(timeStats);
 
     // Callback: update resolution times when a filter is applied or cleared
     function updateResolution(filtered) {
@@ -292,6 +291,9 @@ if (container) {
     );
     if (categoriesEl) grid.appendChild(categoriesEl);
 
+    // Resolution time last — updates when customer/category is clicked
+    grid.appendChild(timeStats);
+
     section.appendChild(grid);
     return section;
   }