feat(WEB): DatePicker 공통화 및 공정관리/작업자화면 대폭 개선

DatePicker 공통화:
- date-picker.tsx 공통 컴포넌트 신규 추가
- 전체 폼 컴포넌트 DatePicker 통일 적용 (50+ 파일)
- DateRangeSelector 개선

공정관리:
- RuleModal 대폭 리팩토링 (-592줄 → 간소화)
- ProcessForm, StepForm 개선
- ProcessDetail 수정, actions 확장

작업자화면:
- WorkerScreen 기능 대폭 확장 (+543줄)
- WorkItemCard 개선
- types 확장

회계/인사/영업/품질:
- BadDebtDetail, BillDetail, DepositDetail, SalesDetail 등 DatePicker 적용
- EmployeeForm, VacationDialog 등 DatePicker 적용
- OrderRegistration, QuoteRegistration DatePicker 적용
- InspectionCreate, InspectionDetail DatePicker 적용

공사관리/CEO대시보드:
- BiddingDetail, ContractDetail, HandoverReport 등 DatePicker 적용
- ScheduleDetailModal, TodayIssueSection 개선

기타:
- WorkOrderCreate/Edit/Detail/List 개선
- ShipmentCreate/Edit, ReceivingDetail 개선
- calendar, calendarEvents 수정
- datepicker 마이그레이션 체크리스트 추가

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

src/components/templates/IntegratedDetailTemplate/FieldInput.tsx

@@ -27,6 +27,7 @@ import { AccountNumberInput } from '@/components/ui/account-number-input';
 import { CurrencyInput } from '@/components/ui/currency-input';
 import { QuantityInput } from '@/components/ui/quantity-input';
 import { NumberInput } from '@/components/ui/number-input';
+import { DatePicker } from '@/components/ui/date-picker';
 import { cn } from '@/lib/utils';
 import { formatPhoneNumber, formatBusinessNumber, formatCardNumber, formatAccountNumber, formatNumber } from '@/lib/formatters';
 import type { FieldDefinition, DetailMode, FieldOption } from './types';
@@ -291,11 +292,9 @@ function renderFormField(
 
     case 'date':
       return (
-        <Input
-          id={field.key}
-          type="date"
+        <DatePicker
           value={stringValue}
-          onChange={(e) => onChange(e.target.value)}
+          onChange={(date) => onChange(date)}
           disabled={disabled}
           className={cn(hasError && 'border-destructive')}
         />

src/components/templates/IntegratedDetailTemplate/FieldRenderer.tsx

@@ -21,6 +21,7 @@ import { BusinessNumberInput } from '@/components/ui/business-number-input';
 import { PersonalNumberInput } from '@/components/ui/personal-number-input';
 import { CurrencyInput } from '@/components/ui/currency-input';
 import { QuantityInput } from '@/components/ui/quantity-input';
+import { DatePicker } from '@/components/ui/date-picker';
 import { cn } from '@/lib/utils';
 import { formatPhoneNumber, formatBusinessNumber, formatNumber } from '@/lib/formatters';
 import type { FieldDefinition, DetailMode, FieldOption } from './types';
@@ -297,11 +298,9 @@ function renderFormField(
 
     case 'date':
       return (
-        <Input
-          id={field.key}
-          type="date"
+        <DatePicker
           value={stringValue}
-          onChange={(e) => onChange(e.target.value)}
+          onChange={(date) => onChange(date)}
           disabled={disabled}
           className={cn(error && 'border-red-500')}
         />