feat: firmware upload on the cluster view

public/scripts/view-models.js

@@ -958,4 +958,77 @@ class MonitoringViewModel extends ViewModel {
     async refresh() {
         await this.loadClusterData();
     }
+}
+
+// Cluster Firmware Upload View Model
+class ClusterFirmwareViewModel extends ViewModel {
+    constructor() {
+        super();
+        this.setMultiple({
+            selectedFile: null,
+            targetNodes: [],
+            uploadProgress: null,
+            uploadResults: [],
+            isUploading: false
+        });
+    }
+
+    // Set selected file
+    setSelectedFile(file) {
+        this.set('selectedFile', file);
+    }
+
+    // Set target nodes (filtered from cluster view)
+    setTargetNodes(nodes) {
+        this.set('targetNodes', nodes);
+    }
+
+    // Start upload
+    startUpload() {
+        this.set('isUploading', true);
+        this.set('uploadProgress', {
+            current: 0,
+            total: 0,
+            status: 'Preparing...'
+        });
+        this.set('uploadResults', []);
+    }
+
+    // Update upload progress
+    updateUploadProgress(current, total, status) {
+        this.set('uploadProgress', {
+            current,
+            total,
+            status
+        });
+    }
+
+    // Add upload result
+    addUploadResult(result) {
+        const results = this.get('uploadResults');
+        results.push(result);
+        this.set('uploadResults', results);
+    }
+
+    // Complete upload
+    completeUpload() {
+        this.set('isUploading', false);
+    }
+
+    // Reset upload state
+    resetUploadState() {
+        this.set('selectedFile', null);
+        this.set('uploadProgress', null);
+        this.set('uploadResults', []);
+        this.set('isUploading', false);
+    }
+
+    // Check if deploy is enabled
+    isDeployEnabled() {
+        const file = this.get('selectedFile');
+        const targetNodes = this.get('targetNodes');
+        const isUploading = this.get('isUploading');
+        
+        return file && targetNodes && targetNodes.length > 0 && !isUploading;
+    }
 }