Building a tag system in Astro

Original post: Building a tag system in Astro Series: Part of How this blog was built — documenting every decision that shaped this site. Tags do more than connect related posts. They create a second navigation system. On this site the same tag data powers the blog archive cloud, the dedicated /tags overview, paginated tag archive pages, and a sidebar browser on individual post pages. The key constraint is consistency. If each surface counts tags differently, builds URLs differently, or decides