Sample: categories are paths, not subdomains示例：分类是路径，不是子域名
A stub so the site has a second category. The FinOps essay is the real article on windtask.com.一个占位页，用来让站点有第二个分类。Windtask 上真正的文章是那篇 FinOps 随笔。
meta
This page is a sample. It exists so /categories/ can show more than one shelf. The essay that belongs on the site is Coding-Agent Cloud Waste.
Categories here are URL paths, such as /categories/finops/ and /categories/notes/. They are not DNS names. finops.windtask.com would be a different hostname, certificate, and Worker. New topics stay in this collection until one of them needs its own origin.