Test Article - Default Author Integration

This is a comprehensive test article to verify that the default author integration is working correctly. When we publish an article without specifying an author, the system should automatically assign the default author that we configured in the settings. This ensures that all articles have a valid author reference, preventing the 500 Internal Server Error that was occurring previously when articles were accessed on the blog. The system now queries Sanity for available authors, allows you to set a default author through the API, and automatically assigns that author to any new articles that dont explicitly specify one. This is a much more robust solution that follows Sanity best practices and ensures a better user experience. The article should now be viewable on the blog without any errors, and the author information should be properly displayed.