fix(ui-ux): add category page directory controls

[9876543210-tc-0123456789]

Summary

• upgrade /wiki/category/[category]/ from a plain article list into a searchable, sortable directory
• show per-article backlinks, references, revisions, word count, section count, and reading time directly on each card
• keep the HTML category page and articles.json on the same shared category-directory data path
• add a postbuild regression check for the category page controls and visible stats

Why This Should Ship

Large category hubs like Subnets were hard to scan because they only exposed title + summary even though the route already computed richer article signals. This change makes category pages much more usable for browsing and comparing articles without leaving the hub.

Review Notes

• Validation: npm run build
• Affected routes: /wiki/category/[category]/ and /wiki/category/[category]/articles.json
• The top summary strip was intentionally removed after review; the page keeps only the filter/sort controls, live result count, and per-article stat chips.

Before / After Screenshots

Before:

After:

Target Branch

• This PR targets test
• This PR targets main only because it promotes test to production

Security Checklist

• No secrets, tokens, build hooks, wallet seeds, or private endpoints are included
• No unnecessary workflow, dependency, or deployment changes

[taopedia-site-maintainer]

Verdict: Close

Final action: close.

PR #1957: fix(ui-ux): add category page directory controls

Why closed:

• Large PR (761 changed lines) needs a smaller focused submission.

This PR is being closed before CI because deterministic repository guardrails already show it should not ship.
Please open a new focused PR only if there is a concrete Taopedia issue that justifies the added code, test, or policy surface.

---

Automated review by Taopedia Site Maintainer.