Fix Set Driver button click handler

- Fixed JavaScript template literal issue preventing button clicks from working
- Changed from inline onclick with template variables to data attributes + event delegation
- Added event listener for .set-driver-btn class buttons
- Buttons now properly read hostname and token from data attributes
- Modal should now open when clicking Set Driver buttons

templates/admin/cluster_nodes.html

@@ -204,7 +204,7 @@ function renderNodesTable() {
             <td>${node.active_jobs || 0}</td>
             <td>${node.completed_jobs || 0}</td>
             <td>
-                <button class="btn btn-sm" onclick="openDriverModal('${node.hostname}', '${node.token}', '${node.hostname}')">Set Driver</button>
+                <button class="btn btn-sm set-driver-btn" data-hostname="${node.hostname}" data-token="${node.token}">Set Driver</button>
             </td>
         </tr>
     `).join('');
@@ -317,6 +317,15 @@ setInterval(updateNodesTable, 10000);
 // Initial load
 document.addEventListener('DOMContentLoaded', function() {
     updateNodesTable();
+
+    // Add event listeners for set driver buttons
+    document.addEventListener('click', function(e) {
+        if (e.target.classList.contains('set-driver-btn')) {
+            const hostname = e.target.getAttribute('data-hostname');
+            const token = e.target.getAttribute('data-token');
+            openDriverModal(hostname, token, hostname);
+        }
+    });
 });
 
 // Close modal when clicking outside