It fixes the remaining stale test and keeps the actual N+1 strategy:

* Main ticket index renders scalar agent_name.
* Ticket index still eager-loads user, owner, agent.
* Ticket show comments no longer eager-load fake owner / agent relations.
* Updated the conflicting regression tests.

Modules/Helpdesk/Livewire/TicketIndex.php

@@ -9,6 +9,7 @@ use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
 use Illuminate\Pagination\LengthAwarePaginator;
 use Illuminate\Support\Facades\Auth;
+use App\Models\User;
 use Livewire\Attributes\Url;
 use Livewire\Component;
 use Livewire\WithPagination;
@@ -124,6 +125,13 @@ final class TicketIndex extends Component
         $search = trim($this->search);
 
         return Ticket::query()
+            ->select('helpdesk_tickets.*')
+            ->addSelect([
+                'agent_name' => User::query()
+                    ->select('name')
+                    ->whereColumn('users.id', 'helpdesk_tickets.agent_id')
+                    ->limit(1),
+            ])
             ->with(['user:id,name,email', 'owner:id,name,email', 'agent:id,name,email', 'status', 'priority', 'category', 'project', 'team'])
             ->withCount('attachments')
             ->visibleTo($user)