feat: [tenant-settings] 회사 표시명 설정 추가

- 테넌트 설정에 '인쇄용 회사명' 입력 필드 추가
- 재직증명서 등 문서 인쇄 시 표시명 우선 적용
- 비워두면 기본 company_name 사용

app/Http/Controllers/TenantSettingController.php

@@ -14,7 +14,7 @@
 class TenantSettingController extends Controller
 {
     /**
-     * 설정 목록 (재고 설정 페이지)
+     * 설정 목록 (재고 설정 + 회사 표시명 설정)
      */
     public function index(Request $request): View|Response
     {
@@ -30,21 +30,25 @@ public function index(Request $request): View|Response
         $itemTypeLabels = $tenantId ? CommonCode::getItemTypes($tenantId) : [];
 
         // 테넌트 미선택 시 빈 설정
-        $stockSettings = collect();
+        $allSettings = collect();
         if ($tenantId) {
-            $stockSettings = TenantSetting::withoutGlobalScopes()
+            $allSettings = TenantSetting::withoutGlobalScopes()
                 ->where('tenant_id', $tenantId)
-                ->where('setting_group', 'stock')
-                ->get()
-                ->keyBy('setting_key');
+                ->get();
         }
 
-        // 설정값 (저장된 값이 없으면 빈 배열/기본값)
+        $stockSettings = $allSettings->where('setting_group', 'stock')->keyBy('setting_key');
+        $companySettings = $allSettings->where('setting_group', 'company')->keyBy('setting_key');
+
+        // 재고 설정값
         $hasSettings = $stockSettings->isNotEmpty();
         $stockItemTypes = $stockSettings->get('stock_item_types')?->setting_value ?? [];
         $defaultSafetyStock = $stockSettings->get('default_safety_stock')?->setting_value ?? 10;
         $lowStockAlert = $stockSettings->get('low_stock_alert')?->setting_value ?? true;
 
+        // 회사 표시명 설정값
+        $displayCompanyName = $companySettings->get('display_company_name')?->setting_value ?? '';
+
         return view('tenant-settings.index', [
             'tenant' => $tenant,
             'hasSettings' => $hasSettings,
@@ -52,6 +56,7 @@ public function index(Request $request): View|Response
             'stockItemTypes' => $stockItemTypes,
             'defaultSafetyStock' => $defaultSafetyStock,
             'lowStockAlert' => $lowStockAlert,
+            'displayCompanyName' => $displayCompanyName,
         ]);
     }
 
@@ -77,6 +82,7 @@ public function store(Request $request): RedirectResponse
             'stock_item_types.*' => 'string|in:'.implode(',', $validItemTypes),
             'default_safety_stock' => 'required|integer|min:0|max:9999',
             'low_stock_alert' => 'nullable|boolean',
+            'display_company_name' => 'nullable|string|max:100',
         ]);
 
         // 재고관리 품목유형 저장
@@ -121,6 +127,20 @@ public function store(Request $request): RedirectResponse
             ]
         );
 
+        // 회사 표시명 저장
+        TenantSetting::withoutGlobalScopes()->updateOrCreate(
+            [
+                'tenant_id' => $tenantId,
+                'setting_group' => 'company',
+                'setting_key' => 'display_company_name',
+            ],
+            [
+                'setting_value' => trim($validated['display_company_name'] ?? ''),
+                'description' => '문서에 인쇄되는 회사 표시명',
+                'updated_by' => $userId,
+            ]
+        );
+
         return redirect()->route('tenant-settings.index')
             ->with('success', '설정이 저장되었습니다.');
     }

app/Services/EmploymentCertService.php

@@ -4,6 +4,7 @@
 
 use App\Models\HR\Employee;
 use App\Models\Tenants\Tenant;
+use App\Models\Tenants\TenantSetting;
 use Illuminate\Support\Facades\Log;
 
 class EmploymentCertService
@@ -33,6 +34,15 @@ public function getCertInfo(int $userId, int $tenantId): array
 
         $tenant = Tenant::findOrFail($tenantId);
 
+        // 인쇄용 회사 표시명 조회 (설정 없으면 기본 company_name 사용)
+        $displaySetting = TenantSetting::withoutGlobalScopes()
+            ->where('tenant_id', $tenantId)
+            ->where('setting_group', 'company')
+            ->where('setting_key', 'display_company_name')
+            ->first();
+        $displayName = $displaySetting?->setting_value ?? '';
+        $companyName = ! empty($displayName) ? $displayName : ($tenant->company_name ?? '');
+
         $residentNumber = $employee->resident_number;
         $maskedResident = $residentNumber
             ? substr($residentNumber, 0, 8).'******'
@@ -46,7 +56,7 @@ public function getCertInfo(int $userId, int $tenantId): array
             'department' => $employee->department?->name ?? '',
             'position' => $employee->position_label ?? '',
             'hire_date' => $employee->hire_date ?? '',
-            'company_name' => $tenant->company_name ?? '',
+            'company_name' => $companyName,
             'business_num' => $tenant->business_num ?? '',
             'ceo_name' => $tenant->ceo_name ?? '',
             'phone' => $tenant->phone ?? '',

resources/views/tenant-settings/index.blade.php

@@ -63,6 +63,36 @@
         @csrf
 
         <div class="grid grid-cols-1 lg:grid-cols-2 xl:grid-cols-3 gap-6">
+            <!-- 회사 표시명 설정 -->
+            <div class="bg-white rounded-lg shadow-sm p-5">
+                <div class="flex items-center gap-3 mb-4">
+                    <div class="w-9 h-9 bg-purple-100 rounded-lg flex items-center justify-center">
+                        <svg class="w-5 h-5 text-purple-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 21V5a2 2 0 00-2-2H7a2 2 0 00-2 2v16m14 0h2m-2 0h-5m-9 0H3m2 0h5M9 7h1m-1 4h1m4-4h1m-1 4h1m-5 10v-5a1 1 0 011-1h2a1 1 0 011 1v5m-4 0h4" />
+                        </svg>
+                    </div>
+                    <div>
+                        <h3 class="font-semibold text-gray-800">회사 표시명</h3>
+                        <p class="text-xs text-gray-500">재직증명서 등 문서 인쇄 시 사용</p>
+                    </div>
+                </div>
+
+                <div class="space-y-3">
+                    <div>
+                        <label for="display_company_name" class="block text-sm font-medium text-gray-600 mb-1">인쇄용 회사명</label>
+                        <input type="text"
+                               id="display_company_name"
+                               name="display_company_name"
+                               value="{{ old('display_company_name', $displayCompanyName) }}"
+                               placeholder="{{ $tenant?->company_name ?? '(주)회사명' }}"
+                               class="w-full px-3 py-2 border border-gray-200 rounded-lg text-sm focus:ring-2 focus:ring-blue-500 focus:border-blue-500">
+                        <p class="mt-1.5 text-xs text-gray-400">
+                            비워두면 기본 회사명({{ $tenant?->company_name ?? '-' }})이 사용됩니다.
+                        </p>
+                    </div>
+                </div>
+            </div>
+
             <!-- 재고관리 품목유형 -->
             <div class="bg-white rounded-lg shadow-sm p-5">
                 <div class="flex items-center gap-3 mb-4">