feat: add incremental build caching and branch-specific Vercel deployment

- Add build artifact caching using branch name as cache key
- Cache .pages, storybook-static, and coverage directories
- Configure Vercel deployment with branch-specific alias domains
- Optimize build performance with cache restore fallbacks

🤖 Generated with [Claude Code](https://claude.ai/code)

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

.github/workflows/release-pages.yml

@@ -36,6 +36,18 @@ jobs:
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
 
+      - name: Cache build artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            .pages
+            storybook-static
+            coverage
+          key: build-cache-${{ github.ref_name }}-${{ hashFiles('pnpm-lock.yaml', 'package.json') }}
+          restore-keys: |
+            build-cache-${{ github.ref_name }}-
+            build-cache-main-
+
       - name: Download Storybook artifact (source run)
         id: fetch_storybook_trigger
         continue-on-error: true
@@ -96,7 +108,7 @@ jobs:
           name: built-pages
           path: '.pages'
 
-  incremental-deploy-github-pages:
+  deploy-github-pages:
     permissions:
       contents: read
       pages: write
@@ -134,9 +146,11 @@ jobs:
       - name: Deploy to Vercel
         uses: amondnet/vercel-action@v20
         with:
-          vercel-token: ${{ secrets.VERCEL_TOKEN }} # Required
-          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }} # Required
-          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }} # Required
+          vercel-token: ${{ secrets.VERCEL_TOKEN }}
+          vercel-org-id: ${{ secrets.VERCEL_ORG_ID }}
+          vercel-project-id: ${{ secrets.VERCEL_PROJECT_ID }}
           working-directory: .pages
-        env:
-          VERCEL_TOKEN: ${{ secrets.VERCEL_TOKEN }} # Required for Vercel Action
+          vercel-args: '--prod'
+          github-comment: false
+          alias-domains: |
+            ${{ github.ref_name }}-comfyui-frontend-docs.vercel.app