feat: frontend optimization, refactoring

public/view-models.js

@@ -212,7 +212,8 @@ class NodeDetailsViewModel extends ViewModel {
             error: null,
             activeTab: 'status',
             nodeIp: null,
-            capabilities: null
+            capabilities: null,
+            tasksSummary: null
         });
     }
 
@@ -255,10 +256,12 @@ class NodeDetailsViewModel extends ViewModel {
         try {
             const ip = this.get('nodeIp');
             const response = await window.apiClient.getTasksStatus(ip);
-            this.set('tasks', response || []);
+            this.set('tasks', (response && Array.isArray(response.tasks)) ? response.tasks : []);
+            this.set('tasksSummary', response && response.summary ? response.summary : null);
         } catch (error) {
             console.error('Failed to load tasks:', error);
             this.set('tasks', []);
+            this.set('tasksSummary', null);
         }
     }