fix: [approvals] 사직서 주민번호 마스킹 제거

app/Services/ResignationService.php

@@ -42,20 +42,11 @@ public function getCertInfo(int $userId, int $tenantId): array
         $displayName = $displaySetting?->setting_value ?? '';
         $companyName = ! empty($displayName) ? $displayName : ($tenant->company_name ?? '');
 
-        // 주민등록번호 마스킹
         $residentNumber = $employee->resident_number ?? '';
-        $maskedResident = '';
-        if (strlen($residentNumber) >= 8) {
-            $front = substr($residentNumber, 0, 6);
-            $back = substr($residentNumber, 7, 1);
-            $maskedResident = $front.'-'.$back.'******';
-        } elseif (! empty($residentNumber)) {
-            $maskedResident = $residentNumber;
-        }
 
         return [
             'name' => $employee->user->name ?? $employee->display_name ?? '',
-            'resident_number' => $maskedResident,
+            'resident_number' => $residentNumber,
             'department' => $employee->department?->name ?? '',
             'position' => $employee->position_label ?? '',
             'hire_date' => $employee->hire_date ?? '',