fix: update GitHub Actions OAuth build process

Follow run.zsh pattern for OAuth asset copying:
- Remove old assets directory completely
- Copy all dist/* to static/
- Copy index.html to oauth-assets.html template

This should fix the OAuth comment system JS loading issue.

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

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

.github/workflows/cloudflare-pages.yml

@@ -34,9 +34,12 @@ jobs:
           
       - name: Copy OAuth build to static
         run: |
-          mkdir -p my-blog/static/assets
-          cp -r oauth/dist/assets/* my-blog/static/assets/
-          cp oauth/dist/index.html my-blog/static/oauth/index.html || true
+          # Remove old assets (following run.zsh pattern)
+          rm -rf my-blog/static/assets
+          # Copy all dist files to static
+          cp -rf oauth/dist/* my-blog/static/
+          # Copy index.html to oauth-assets.html template
+          cp oauth/dist/index.html my-blog/templates/oauth-assets.html
           
       - name: Cache ailog binary
         uses: actions/cache@v4