fix(secubox): resolve race condition in appstore and modules data loading

Fixed issue where first page load would show empty apps/modules list, requiring
a refresh to display data.

Changes:
- Added error handling in refreshData() for both apps.js and modules.js
- Added null/empty data checks before storing results
- Fixed render() to use data parameter first, then fallback to cached instance data
- Added console logging for debugging empty responses
- Added user-friendly error notifications when API calls fail

The render function now properly uses:
  var apps = (data && data.apps) || this.appsData || [];
  var modules = (data && data.modules) || this.modulesData || [];

This ensures the data passed from load() is used on first render, preventing
the empty state on initial page load.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

luci-app-secubox/htdocs/luci-static/resources/view/secubox/apps.js

@@ -44,9 +44,17 @@ return view.extend({
 	refreshData: function() {
 		var self = this;
 		return API.getAppstoreApps().then(function(data) {
+			if (!data) {
+				console.warn('getAppstoreApps returned empty data');
+				return { apps: [], categories: {} };
+			}
 			self.appsData = data.apps || [];
 			self.categoriesData = data.categories || {};
 			return data;
+		}).catch(function(err) {
+			console.error('Error loading appstore apps:', err);
+			ui.addNotification(null, E('p', _('Failed to load app store: ') + err.message), 'error');
+			return { apps: [], categories: {} };
 		});
 	},
 

luci-app-secubox/htdocs/luci-static/resources/view/secubox/modules.js

@@ -43,14 +43,22 @@ return view.extend({
 	refreshData: function() {
 		var self = this;
 		return API.getModules().then(function(data) {
+			if (!data) {
+				console.warn('getModules returned empty data');
+				return { modules: [] };
+			}
 			self.modulesData = data.modules || [];
 			return data;
+		}).catch(function(err) {
+			console.error('Error loading modules:', err);
+			ui.addNotification(null, E('p', _('Failed to load modules: ') + err.message), 'error');
+			return { modules: [] };
 		});
 	},
 
 	render: function(data) {
 		var self = this;
-		var modules = this.modulesData;
+		var modules = (data && data.modules) || this.modulesData || [];
 
 		var defaultFilter = this.currentFilter || 'all';
 		var container = E('div', {