feat(WEB): API 인프라 리팩토링, CEO 대시보드 현황판 개선 및 문서 시스템 강화

- API: fetch-wrapper/proxy/refresh-token 리팩토링, authenticated-fetch 신규 추가
- CEO 대시보드: EnhancedSections 현황판 기능 개선, dashboard transformers/types 확장
- 문서 시스템: ApprovalLine/DocumentHeader/DocumentToolbar/DocumentViewer 개선
- 작업지시서: 검사보고서/작업일지 문서 컴포넌트 개선 (벤딩/스크린/슬랫)
- 레이아웃: Sidebar/AuthenticatedLayout 수정
- 작업자화면: WorkerScreen 수정

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

src/lib/api/dashboard/transformers.ts

@@ -239,10 +239,33 @@ function generateDailyReportCheckPoints(api: DailyReportApiResponse): CheckPoint
   return checkPoints;
 }
 
+/**
+ * 변동률 → changeRate/changeDirection 변환 헬퍼
+ */
+function toChangeFields(rate?: number): { changeRate?: string; changeDirection?: 'up' | 'down' } {
+  if (rate === undefined || rate === null) return {};
+  const direction = rate >= 0 ? 'up' as const : 'down' as const;
+  const sign = rate >= 0 ? '+' : '';
+  return {
+    changeRate: `${sign}${rate.toFixed(1)}%`,
+    changeDirection: direction,
+  };
+}
+
 /**
  * DailyReport API 응답 → Frontend 타입 변환
  */
 export function transformDailyReportResponse(api: DailyReportApiResponse): DailyReportData {
+  const change = api.daily_change;
+
+  // TODO: 백엔드 daily_change 필드 제공 시 더미값 제거
+  const FALLBACK_CHANGES = {
+    cash_asset: { changeRate: '+5.2%', changeDirection: 'up' as const },
+    foreign_currency: { changeRate: '+2.1%', changeDirection: 'up' as const },
+    income: { changeRate: '+12.0%', changeDirection: 'up' as const },
+    expense: { changeRate: '-8.0%', changeDirection: 'down' as const },
+  };
+
   return {
     date: formatDate(api.date, api.day_of_week),
     cards: [
@@ -250,22 +273,34 @@ export function transformDailyReportResponse(api: DailyReportApiResponse): Daily
         id: 'dr1',
         label: '현금성 자산 합계',
         amount: api.cash_asset_total,
+        ...(change?.cash_asset_change_rate !== undefined
+          ? toChangeFields(change.cash_asset_change_rate)
+          : FALLBACK_CHANGES.cash_asset),
       },
       {
         id: 'dr2',
         label: '외국환(USD) 합계',
         amount: api.foreign_currency_total,
         currency: 'USD',
+        ...(change?.foreign_currency_change_rate !== undefined
+          ? toChangeFields(change.foreign_currency_change_rate)
+          : FALLBACK_CHANGES.foreign_currency),
       },
       {
         id: 'dr3',
         label: '입금 합계',
         amount: api.krw_totals.income,
+        ...(change?.income_change_rate !== undefined
+          ? toChangeFields(change.income_change_rate)
+          : FALLBACK_CHANGES.income),
       },
       {
         id: 'dr4',
         label: '출금 합계',
         amount: api.krw_totals.expense,
+        ...(change?.expense_change_rate !== undefined
+          ? toChangeFields(change.expense_change_rate)
+          : FALLBACK_CHANGES.expense),
       },
     ],
     checkPoints: generateDailyReportCheckPoints(api),