refactor(B07,B08): 도면 코드 B08_DesignDetail 이동 + 수량 슬롯 B07_Quantity 확보

- B07_wf4_DesignDetail(8파일+openwebcad) -> B08_DesignDetail로 git mv (이력 보존)
- B08_wf5_Quantity -> B07_Quantity (구 수량 백업 zip 보관 폴더)
- 파생 문자열 일괄 전환: /b07-cad -> /b08-cad 정적 서빙, CAD 레이어 b07-* -> b08-*,
  postMessage aislo:b07:* -> aislo:b08:*, 패키지명 aislo-b08-cad, CSS .b08-*,
  라우트 키/슬러그(B08_DESIGN_DETAIL/b08-design-detail, B07_QUANTITY/b07-quantity)
- 상세설계 워크플로우 stage 4 -> 5 (확정/무효화 전이 3곳), 확정 완료 시 B09로 이동
- WORKFLOW_STEP_ROUTES 순서 재배열: index4=수량(B07), index5=상세설계(B08)
- [임시] B08 이동 테스트 버튼 제거, openwebcad dist 재빌드
- 주석 의미 정렬: 수량 인계 주석 B08->B07, 도면 참조 B07->B08

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

B08_DesignDetail/openwebcad/.github/workflows/deploy.yml

@@ -0,0 +1,46 @@
+name: Test, Build, and Deploy
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: 📥 Checkout code
+        uses: actions/checkout@v4
+
+      - name: 🟢 Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+
+      - name: ♻️ Cache npm
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      - name: 📦 Install dependencies
+        run: npm ci
+
+      - name: 🧪 Run tests
+        run: npm run test
+
+      - name: 🛠️ Build project
+        run: npm run build
+
+      - name: 🛑 Disable Jekyll
+        run: echo > dist/.nojekyll
+
+      - name: 🚀 Deploy
+        if: success() && github.ref == 'refs/heads/master'
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dist