Update default branding palette for tenants and guests

app/Http/Controllers/Api/EventPublicController.php

@@ -1025,10 +1025,10 @@ class EventPublicController extends BaseController
     private function resolveBrandingPayload(Event $event): array
     {
         $defaults = [
-            'primary' => '#f43f5e',
-            'secondary' => '#fb7185',
-            'background' => '#ffffff',
-            'surface' => '#ffffff',
+            'primary' => '#FF5A5F',
+            'secondary' => '#FFF8F5',
+            'background' => '#FFF8F5',
+            'surface' => '#FFF8F5',
             'font' => null,
             'size' => 'm',
             'logo_position' => 'left',

app/Http/Controllers/Api/Tenant/SettingsController.php

@@ -113,8 +113,8 @@ class SettingsController extends Controller
         $defaultSettings = [
             'branding' => [
                 'logo_url' => null,
-                'primary_color' => '#3B82F6',
-                'secondary_color' => '#1F2937',
+                'primary_color' => '#FF5A5F',
+                'secondary_color' => '#FFF8F5',
                 'font_family' => 'Inter, sans-serif',
             ],
             'features' => [