Update workflow to handle static assets

Author: katibest

.github/workflows/deploy.yml

@@ -39,6 +39,10 @@ jobs:
         run: |
           mix assets.deploy
           mix phx.digest
+          # Ensure static directory exists
+          mkdir -p priv/static/images
+          # Copy any static assets if they exist
+          cp -r assets/static/* priv/static/ 2>/dev/null || true
 
       - name: Deploy to GitHub Pages
         uses: peaceiris/actions-gh-pages@v3