Simplify GitHub Actions: Use gh-pages package for deployment

- Switch to simpler gh-pages deployment method
- Remove complex GitHub Pages actions configuration
- Uses npm run deploy command with gh-pages package
- Should resolve deployment issues

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

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

Author: babayomi

.github/workflows/deploy.yml

@@ -6,19 +6,10 @@ on:
   workflow_dispatch:
 
 permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-concurrency:
-  group: "pages"
-  cancel-in-progress: false
+  contents: write
 
 jobs:
   deploy:
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -35,14 +26,8 @@ jobs:
       - name: Build CSS
         run: npm run build
 
-      - name: Setup Pages
-        uses: actions/configure-pages@v4
-
-      - name: Upload artifact
-        uses: actions/upload-pages-artifact@v3
-        with:
-          path: './src'
-
       - name: Deploy to GitHub Pages
-        id: deployment
-        uses: actions/deploy-pages@v4
+        run: |
+          git config --global user.name "GitHub Actions"
+          git config --global user.email "actions@github.com"
+          npm run deploy