Fix group print crash + add delete button with full cascade

- GroupSchedulePrintController used $this->authorize() but Laravel 13's base Controller has no AuthorizesRequests trait — switched to Gate::authorize()
- Added deleteGroup() to GroupList with full cascade: sessions (attendance auto-cascades), schedules, enrollments, waitlists, then the group itself
- Delete button with wire:confirm for Arabic confirmation prompt, gated behind groups.delete permission
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Http/Controllers/GroupSchedulePrintController.php

@@ -3,13 +3,13 @@
 namespace App\Http\Controllers;
 
 use App\Domain\Training\Models\TrainingGroup;
-use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Gate;
 
 class GroupSchedulePrintController extends Controller
 {
     public function __invoke(TrainingGroup $group)
     {
-        $this->authorize('groups.list');
+        Gate::authorize('groups.list');
 
         $group->load(['program', 'schedules', 'enrollments' => function ($q) {
             $q->where('status', 'active')->with('participant');

app/Livewire/Groups/GroupList.php

@@ -8,6 +8,7 @@
 use App\Domain\Training\Models\TrainingProgram;
 use App\Domain\Training\Services\TrainingGroupService;
 use App\Domain\Shared\Exceptions\DomainException;
+use Illuminate\Support\Facades\DB;
 use Livewire\Attributes\Layout;
 use Livewire\Attributes\Title;
 use Livewire\Attributes\Url;
@@ -71,6 +72,28 @@ public function changeStatus(string $uuid, string $newStatus, TrainingGroupServi
         }
     }
 
+    public function deleteGroup(string $uuid): void
+    {
+        $this->authorize('groups.delete');
+
+        $group = TrainingGroup::where('uuid', $uuid)->firstOrFail();
+
+        try {
+            DB::transaction(function () use ($group) {
+                // Sessions cascade-delete their attendance records automatically
+                $group->sessions()->forceDelete();
+                $group->schedules()->delete();
+                $group->enrollments()->forceDelete();
+                $group->waitlists()->delete();
+                $group->forceDelete();
+            });
+
+            session()->flash('success', __('تم حذف المجموعة وجميع البيانات المرتبطة بها'));
+        } catch (\Throwable $e) {
+            session()->flash('error', __('فشل حذف المجموعة: ') . $e->getMessage());
+        }
+    }
+
     public function render()
     {
         $branchId = $this->getActiveBranchId();

resources/views/livewire/groups/group-list.blade.php

@@ -92,6 +92,11 @@ class="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:rin
                                    class="text-green-600 hover:text-green-800 text-sm">{{ __('تعديل') }}</a>
                                 @endcan
                                 <a href="{{ route('groups.print', $group) }}" target="_blank" class="text-green-600 hover:text-green-700 active:text-green-800 text-sm transition-colors">{{ __('طباعة') }}</a>
+                                @can('groups.delete')
+                                <button wire:click="deleteGroup('{{ $group->uuid }}')"
+                                        wire:confirm="{{ __('هل أنت متأكد من حذف هذه المجموعة؟ سيتم حذف جميع الجداول والحصص والتسجيلات المرتبطة بها نهائيًا.') }}"
+                                        class="text-red-600 hover:text-red-800 text-sm">{{ __('حذف') }}</button>
+                                @endcan
                             </div>
                         </td>
                     </tr>