Add support for filtering domains by 'available' and 'error' status

Extended the domain filtering logic and UI to allow filtering by 'available' and 'error' statuses. Updated the Domain model to handle these new filters and adjusted the dashboard to include global stats, including inactive domains.

app/Controllers/DashboardController.php

@@ -43,9 +43,13 @@ class DashboardController extends Controller
         // Format domains for display
         $formattedRecentDomains = \App\Helpers\DomainHelper::formatMultiple($recentDomains);
         $formattedExpiringDomains = \App\Helpers\DomainHelper::formatMultiple($expiringThisMonth);
+        
+        // Get global stats for dashboard cards
+        $globalStats = \App\Helpers\LayoutHelper::getGlobalStats();
 
         $this->view('dashboard/index', [
             'stats' => $stats,
+            'globalStats' => $globalStats,
             'recentDomains' => $formattedRecentDomains,
             'expiringThisMonth' => $formattedExpiringDomains,
             'expiringCount' => count($allExpiringDomains),