feat: implement Hugo site structure and configuration

- Add base template (baseof.html) for consistent layout
- Create home page (index.html) and content (_index.md)
- Update Hugo configuration (hugo.toml) for local development
- Improve list template with proper block definition
- Update .gitignore to exclude WordPress content
- Add .gitkeep to maintain posts directory structure
- Update package.json and dependencies
- Refactor fetch-wordpress.js to use dynamic import
- Update yarn.lock with latest dependencies

.gitignore

@@ -158,3 +158,9 @@ dist
 
 # End of https://www.toptal.com/developers/gitignore/api/node,hugo
 
+# WordPress fetched content (auto-generated, should not be committed)
+/data/wordpress/
+/content/posts/
+!content/posts/.gitkeep
+hugo_stats.json
+