feat(WEB): 중간검사 성적서 편집 모드 및 저장 기능 추가

- 3개 검사 콘텐츠 컴포넌트에 forwardRef + useImperativeHandle 추가 (getInspectionData 노출)
- InspectionReportModal에 readOnly prop, 저장 버튼, ref 연결 추가
- saveInspectionData 서버 액션 추가 (POST /api/v1/work-orders/{id}/inspection)
- 작업자 화면에서 readOnly={false} 전달 (편집+저장 가능)
- 작업지시 관리에서는 readOnly 기본값(true)으로 읽기 전용 유지

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

src/components/production/WorkOrders/documents/BendingInspectionContent.tsx

@@ -14,9 +14,13 @@
  * - 부적합 내용 / 종합판정(자동)
  */
 
-import { useState, useCallback, useMemo } from 'react';
+import { useState, useCallback, useMemo, forwardRef, useImperativeHandle } from 'react';
 import type { WorkOrder } from '../types';
 
+export interface InspectionContentRef {
+  getInspectionData: () => unknown;
+}
+
 interface BendingInspectionContentProps {
   data: WorkOrder;
   readOnly?: boolean;
@@ -98,7 +102,7 @@ const INITIAL_PRODUCTS: Omit<ProductRow, 'bendingStatus' | 'lengthMeasured' | 'w
   },
 ];
 
-export function BendingInspectionContent({ data: order, readOnly = false }: BendingInspectionContentProps) {
+export const BendingInspectionContent = forwardRef<InspectionContentRef, BendingInspectionContentProps>(function BendingInspectionContent({ data: order, readOnly = false }, ref) {
   const fullDate = new Date().toLocaleDateString('ko-KR', {
     year: 'numeric',
     month: 'long',
@@ -166,6 +170,27 @@ export function BendingInspectionContent({ data: order, readOnly = false }: Bend
     return null;
   }, [products, getProductJudgment]);
 
+  useImperativeHandle(ref, () => ({
+    getInspectionData: () => ({
+      products: products.map(p => ({
+        id: p.id,
+        category: p.category,
+        productName: p.productName,
+        productType: p.productType,
+        bendingStatus: p.bendingStatus,
+        lengthMeasured: p.lengthMeasured,
+        widthMeasured: p.widthMeasured,
+        gapPoints: p.gapPoints.map(gp => ({
+          point: gp.point,
+          designValue: gp.designValue,
+          measured: gp.measured,
+        })),
+      })),
+      inadequateContent,
+      overallResult,
+    }),
+  }), [products, inadequateContent, overallResult]);
+
   const inputClass = 'w-full text-center border-0 bg-transparent focus:outline-none focus:ring-1 focus:ring-blue-500 rounded text-xs';
 
   // 전체 행 수 계산 (간격 포인트 수 합계)
@@ -478,4 +503,4 @@ export function BendingInspectionContent({ data: order, readOnly = false }: Bend
       </table>
     </div>
   );
-}
+});