修復部署：改用 gh-pages 分支部署方式

- 使用 peaceiris/actions-gh-pages 推送到 gh-pages 分支
- 配合 repo 的 GitHub Pages 設定（source: gh-pages）
- 移除 actions/deploy-pages 直接部署方式

Author: awesome-doge

.github/workflows/run.yml

@@ -78,13 +78,29 @@ jobs:
     if: github.ref == 'refs/heads/master' && github.event_name == 'push' && github.repository == 'cypherpunks-core/cypherpunks-core.github.io'
     needs: build
     runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
     steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Download artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: github-pages
+          path: _site
+
+      - name: Extract artifact
+        run: |
+          cd _site
+          tar -xvf artifact.tar
+          rm artifact.tar
+
       - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./_site
+          publish_branch: gh-pages
+          force_orphan: true
 
   # Quality Checks (run on PRs)
   quality-check: