Posts vs. notes tag system

Feature

A lightweight content taxonomy built on tags. A page tagged post is a “post” — a more invested, milestone-worthy piece meant for sharing; everything else is a “note”. The home page surfaces both: two columns showing recent posts and recent notes side by side. The tag listing page is decluttered and sorted by how many pages carry each tag, with the count shown inline next to the tag name.

Usage

• Tag a page post in its frontmatter (tags: [post]) to make it a post; leave it untagged (or tag it anything else) to keep it a note.
• The index page automatically renders “Recent posts” and “Recent notes” in two columns — no per-page setup.
• The /tags page lists every tag with its page count, ordered most-used first.

Implementation

• quartz.layout.ts — afterBody gets a ConditionalRender (only on the index slug) wrapping a two-column Flex of RecentNotes. “Recent posts” filters on frontmatter.tags.includes("post") with showTags: false; “Recent notes” filters on !tags.includes("post") and excludes any …/index slug. The filter started as a path regex (/^posts/) and a notes tag, then was reworked to the post/non-post split (5756e9c, 6943bbe, 77f7a4f); the conditional was also refactored from per-component to a single wrapper (779993b).
• quartz/components/pages/TagContent.tsx — tags are sorted by descending page count (tags.sort((a, b) => map.get(b).length - map.get(a).length)), the tag-name heading appends <span>{pages.length}</span>, and the verbose per-tag description + “N items under this tag” page listing are gated off ({false && …}) for a cleaner index.
• quartz/components/TagList.tsx — styles that inline count span small and muted (color: #666; font-size: 0.6em).