feat(WEB): 입력 컴포넌트 공통화 및 UI 개선

- 숫자/통화/전화번호/사업자번호 등 특수 입력 컴포넌트 추가
- MobileCard 컴포넌트 통합 (ListMobileCard 제거)
- IntegratedListTemplateV2 페이지네이션 버그 수정 (NaN 이슈)
- IntegratedDetailTemplate 타이틀 중복 수정
- 문서 시스템 컴포넌트 추가
- 헤더 벨 아이콘 포커스 스타일 개선

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

src/components/accounting/ExpectedExpenseManagement/index.tsx

@@ -59,7 +59,7 @@ import {
   type RowClickHandlers,
   type StatCard,
 } from '@/components/templates/UniversalListPage';
-import { ListMobileCard, InfoField } from '@/components/organisms/ListMobileCard';
+import { ListMobileCard, InfoField } from '@/components/organisms/MobileCard';
 import type {
   ExpectedExpenseRecord,
   TransactionType,
@@ -85,6 +85,7 @@ import {
 import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { Textarea } from '@/components/ui/textarea';
+import { CurrencyInput } from '@/components/ui/currency-input';
 import {
   TRANSACTION_TYPE_FILTER_OPTIONS,
   PAYMENT_STATUS_FILTER_OPTIONS,
@@ -1220,10 +1221,9 @@ export function ExpectedExpenseManagement({
 
               <div className="space-y-2">
                 <Label>지출금액 *</Label>
-                <Input
-                  type="number"
-                  value={formData.amount || ''}
-                  onChange={(e) => setFormData(prev => ({ ...prev, amount: Number(e.target.value) }))}
+                <CurrencyInput
+                  value={formData.amount}
+                  onChange={(value) => setFormData(prev => ({ ...prev, amount: value ?? 0 }))}
                   placeholder="금액 입력"
                 />
               </div>