feat(home): add a Taopedia At A Glance statistics band

[jason020818]

What & why — Refs #521

The landing page surfaces topics, core articles, subnets, and recent changes, but it never shows the overall scale of the wiki. A reader can't tell whether the knowledge base is broad or thin without leaving for Special:Statistics — the hero only mentions the article count in passing.

This adds a compact Taopedia At A Glance band directly under the hero with the three headline figures the directory already tracks — Articles, Topics, and Subnets — each linking to its Special: directory.

• Counts come straight from the same build-time artifacts the linked pages use (the slug map, the category index, and the shared buildSubnets() roster), so the band can never disagree with Special:AllPages, Special:Categories, or Special:Subnets.
• Topics uses the same "categories with at least one article" definition Special:Statistics reports.
• Reuses the existing card styling — minimal new CSS, no new dependencies.

Screenshots

Homepage / at 1280px viewport. The band shows the live build-time counts, so the figures naturally track the content as it grows — the screenshots demonstrate the layout.

Before (no scale shown under the hero):

After (At A Glance band under the hero):

The new band, close up:

Target Branch

• This PR targets test

Testing

• astro build renders the band on / (verified in dist/index.html)
• node scripts/check-home-links.js passes (no bare-slug article links introduced)
• Each figure reads from the same build artifact as the Special: page it links to (slug map → Special:AllPages, category index → Special:Categories, buildSubnets() → Special:Subnets), so the band can never disagree with them

[taopedia-site-maintainer]

Verdict: Close

PR #1970: feat(home): add a Taopedia At A Glance statistics band

This PR changes hover-driven on-screen behavior. Code analysis confirms the visible effect only appears during the interaction, so static before/after screenshots cannot demonstrate it (an identical-looking pair is not valid evidence). A short screen recording or GIF is required.

Visual PRs need evidence in the PR description so the maintainer can review the change quickly and reliably. A deploy preview link alone is not enough.

Required evidence for resubmission:

• Page URL.
• Viewport width, especially for responsive changes.
• Action taken (the hover that reveals the change).
• Expected before behavior.
• Expected after behavior.
• A short video/GIF that shows the change happening during the interaction. Static screenshots alone are not accepted for this PR.

Changed files:

• src/pages/index.astro

CI: Checks still pending: build

Please open a new focused PR with the required evidence attached.

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Automated review by Taopedia Site Maintainer.