Fix employee delete: remove broken DI param, add cascade logic

The delete method had an unused EmployeeService parameter that could
cause Livewire method resolution issues. Removed it, and added proper
cascading: deactivate trainer record, unlink+soft-delete user account,
then soft-delete the employee — all in one transaction.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/Livewire/HR/EmployeeList.php

@@ -5,8 +5,8 @@
 use App\Domain\HR\Enums\EmployeeStatus;
 use App\Domain\HR\Enums\EmploymentType;
 use App\Domain\HR\Models\Employee;
-use App\Domain\HR\Services\EmployeeService;
 use App\Domain\Identity\Services\PermissionService;
+use Illuminate\Support\Facades\DB;
 use Livewire\Attributes\Layout;
 use Livewire\Attributes\Title;
 use Livewire\Attributes\Url;
@@ -51,12 +51,33 @@ public function updatedBranchId(): void
         $this->resetPage();
     }
 
-    public function delete(string $uuid, EmployeeService $service): void
+    public function delete(string $uuid): void
     {
         $this->authorize('employees.delete');
 
         $employee = Employee::where('uuid', $uuid)->firstOrFail();
-        $employee->delete();
+
+        DB::transaction(function () use ($employee) {
+            // 1. Deactivate trainer record if exists
+            if ($employee->trainer) {
+                $employee->trainer->update(['status' => 'inactive']);
+            }
+
+            // 2. Soft-delete linked user account if exists
+            if ($employee->user_id) {
+                $user = \App\Models\User::find($employee->user_id);
+                if ($user) {
+                    if ($user->person_id) {
+                        \App\Domain\Identity\Models\Person::where('id', $user->person_id)
+                            ->update(['user_id' => null]);
+                    }
+                    $user->delete();
+                }
+            }
+
+            // 3. Soft-delete the employee
+            $employee->delete();
+        });
 
         session()->flash('success', __('تم حذف الموظف بنجاح'));
     }