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/settings/WorkScheduleManagement/index.tsx

@@ -9,6 +9,7 @@ import { Button } from '@/components/ui/button';
 import { Input } from '@/components/ui/input';
 import { TimePicker } from '@/components/ui/time-picker';
 import { Label } from '@/components/ui/label';
+import { QuantityInput } from '@/components/ui/quantity-input';
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card';
 import { Checkbox } from '@/components/ui/checkbox';
 import {
@@ -261,14 +262,13 @@ export function WorkScheduleManagement() {
               <div className="space-y-2">
                 <Label htmlFor="weekly-hours">주당 기준 근로시간</Label>
                 <div className="flex items-center gap-2">
-                  <Input
+                  <QuantityInput
                     id="weekly-hours"
-                    type="number"
                     min={0}
                     max={52}
                     value={settings.weeklyWorkHours}
-                    onChange={(e) =>
-                      setSettings(prev => ({ ...prev, weeklyWorkHours: parseInt(e.target.value) || 0 }))
+                    onChange={(value) =>
+                      setSettings(prev => ({ ...prev, weeklyWorkHours: value ?? 0 }))
                     }
                     className="w-24"
                   />
@@ -278,14 +278,13 @@ export function WorkScheduleManagement() {
               <div className="space-y-2">
                 <Label htmlFor="overtime-hours">주당 연장 근로시간</Label>
                 <div className="flex items-center gap-2">
-                  <Input
+                  <QuantityInput
                     id="overtime-hours"
-                    type="number"
                     min={0}
                     max={52}
                     value={settings.weeklyOvertimeHours}
-                    onChange={(e) =>
-                      setSettings(prev => ({ ...prev, weeklyOvertimeHours: parseInt(e.target.value) || 0 }))
+                    onChange={(value) =>
+                      setSettings(prev => ({ ...prev, weeklyOvertimeHours: value ?? 0 }))
                     }
                     className="w-24"
                   />