feat(WEB): Vercel 배포 대응 및 타입 안정성 개선

- puppeteer → puppeteer-core + @sparticuz/chromium 전환 (Vercel 서버리스 호환)
- PDF 생성 API 로컬/Vercel 환경 분기 처리
- next.config.ts: ignoreBuildErrors false로 전환
- WorkOrder items에 orderNodeId/orderNodeName 필드 추가
- 결재선 데이터에 name/dept 필드 추가
- OrderSalesDetailView 타입 캐스팅 안전하게 수정
- vercel.json 설정 추가

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/app/api/pdf/generate/route.ts

@@ -1,5 +1,6 @@
 import { NextRequest, NextResponse } from 'next/server';
-import puppeteer from 'puppeteer';
+import puppeteer from 'puppeteer-core';
+import chromium from '@sparticuz/chromium';
 
 /**
  * PDF 생성 API
@@ -35,17 +36,20 @@ export async function POST(request: NextRequest) {
       );
     }
 
-    // Puppeteer 브라우저 실행 (Docker Alpine에서는 시스템 Chromium 사용)
+    // 로컬 개발 vs Vercel 환경 분기
+    const isVercel = process.env.VERCEL === '1';
     const browser = await puppeteer.launch({
-      headless: true,
-      executablePath: process.env.PUPPETEER_EXECUTABLE_PATH || undefined,
-      args: [
+      args: isVercel ? chromium.args : [
         '--no-sandbox',
         '--disable-setuid-sandbox',
         '--disable-dev-shm-usage',
         '--disable-gpu',
         '--disable-software-rasterizer',
       ],
+      executablePath: isVercel
+        ? await chromium.executablePath()
+        : process.env.PUPPETEER_EXECUTABLE_PATH || '/usr/bin/google-chrome-stable',
+      headless: true,
     });
 
     const page = await browser.newPage();