Add error log management and bulk admin actions

Introduces error log tracking with new ErrorLog model, controller, views, and migration. Adds admin UI for viewing, resolving, and deleting errors. Implements bulk actions for users and notification groups, refactors domain filtering/pagination, and centralizes admin access checks using Auth::requireAdmin().

app/Controllers/DashboardController.php

@@ -76,13 +76,12 @@ class DashboardController extends Controller
             $status['database'] = ['status' => 'offline', 'color' => 'red'];
         }
 
-        // Check WHOIS service (test with a known TLD)
+        // Check TLD Registry (WHOIS service)
         try {
-            $whoisService = new \App\Services\WhoisService();
-            // Quick test - just check if we can discover TLD servers
             $tldModel = new \App\Models\TldRegistry();
-            $testTld = $tldModel->find(1); // Get first TLD
-            if ($testTld) {
+            // Check if ANY TLDs exist in registry (not just id=1)
+            $tldStats = $tldModel->getStatistics();
+            if ($tldStats['total'] > 0) {
                 $status['whois'] = ['status' => 'active', 'color' => 'green'];
             } else {
                 $status['whois'] = ['status' => 'no data', 'color' => 'yellow'];