refactor: UniversalListPage externalIsLoading 지원 및 스켈레톤 개선

- UniversalListPage에 externalIsLoading prop 추가
- CardTransactionDetailClient DevFill 자동입력 기능 추가
- 여러 컴포넌트 로딩 상태 처리 개선
- skeleton 컴포넌트 확장

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/hr/AttendanceManagement/index.tsx

@@ -12,7 +12,6 @@ import {
   FileText,
   Edit,
 } from 'lucide-react';
-import { ContentLoadingSpinner } from '@/components/ui/loading-spinner';
 import { Badge } from '@/components/ui/badge';
 import { Button } from '@/components/ui/button';
 import { Checkbox } from '@/components/ui/checkbox';
@@ -673,16 +672,12 @@ export function AttendanceManagement() {
     handleSubmitReason,
   ]);
 
-  // 로딩 상태
-  if (isLoading) {
-    return <ContentLoadingSpinner text="근태 정보를 불러오는 중..." />;
-  }
-
   return (
     <UniversalListPage<AttendanceRecord>
       config={attendanceConfig}
       initialData={mergedRecords}
       initialTotalCount={mergedRecords.length}
+      externalIsLoading={isLoading}
     />
   );
 }

src/components/hr/CardManagement/index.tsx

@@ -405,6 +405,7 @@ export function CardManagement({ initialData }: CardManagementProps) {
       config={cardManagementConfig}
       initialData={cards}
       initialTotalCount={cards.length}
+      externalIsLoading={isLoading}
     />
   );
 }

src/components/hr/EmployeeManagement/index.tsx

@@ -764,6 +764,7 @@ export function EmployeeManagement() {
       config={employeeConfig}
       initialData={employees}
       initialTotalCount={employees.length}
+      externalIsLoading={isLoading}
     />
   );
 }

src/components/hr/SalaryManagement/index.tsx

@@ -553,6 +553,7 @@ export function SalaryManagement() {
         getItemId: (item) => item.id,
       }}
       onSearchChange={setSearchQuery}
+      externalIsLoading={isLoading}
     />
   );
 }

src/components/hr/VacationManagement/index.tsx

@@ -837,6 +837,7 @@ export function VacationManagement() {
       onTabChange={handleMainTabChange}
       onSearchChange={setSearchQuery}
       onFilterChange={handleFilterChange}
+      externalIsLoading={isLoading}
     />
   );
 }