Let a category label link to its own page, not its section's

[ssavutu]

What

Makes taxonomyStore resolve a category label to a link using the same precedence the CMS uses: a row's own title first, aliases only for titles no row claims.

Why

indexTaxonomy built its map from category_aliases alone, first writer wins. /v1/taxonomy comes back ordered by kind, so every section is written before every subsection — which meant a section's alias beat a subsection's own title. An alias exists so a section can absorb a category that has no page of its own; it should never outrank that category once it has one.

This was a stopgap from when most WordPress sub-categories had no row at all. DrexelTriangle/triangle-cms#215 gives them rows, so the shortcut is now actively wrong.

How

Two tiers in indexTaxonomy: canonical_title claims a title first, then aliases fill the rest. This mirrors RefreshCategoryAliases in the CMS. Matching it is the point — the CMS sends a resolved slug on every category, and the fallback here shouldn't disagree with it about where a label leads. The map is renamed aliases → owners, since it's no longer an alias map.

Testing

eslint clean, astro check 0 errors / 0 warnings. There's no test runner in this repo, so I verified by running the old and new index functions side by side over the real /v1/taxonomy payload plus the 48 rows the CMS seed adds:

• Steady state: nothing moves. All 101 in-use categories resolve identically, because the CMS-sent slug is routable and getCategoryHref short-circuits before reaching the map.
• The fallback path is where it differs, which an edge-cached article response carrying a pre-seed slug will hit:

category	before	after
Men's Lacrosse	/sports	/mens-lacrosse
Editorial	/opinion	/editorial
Podcasts	/columns	/podcasts
Arts & Entertainment	/entertainment	/entertainment

Genuine aliases are unaffected — the last row is a category with no page of its own, and it still resolves to the section that absorbs it.

Ordering

Independent of DrexelTriangle/triangle-cms#215; either can ship first.

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