[admin] Quarterly content-refresh routine

[anurag629]

Context

Part of the SEO growth initiative (#18): Phase 4: Compound and technical polish.
Refreshing existing rankers usually beats writing new pages click-for-click, because they already have some authority. This is the highest-ROI ongoing activity.

What to do

• Every quarter, update stats, screenshots, and the year in titles.
• Add sections for new sub-questions that surfaced in GSC.
• Strengthen internal links to the page and re-request indexing.

Where

lib/tools.ts, guides, informed by the GSC weekly tracking.

Acceptance criteria

• First refresh pass completed
• Recurring reminder in place

Notes

Branch off develop (feat/*, docs/*, chore/*), open a PR into develop, and squash-merge. See CONTRIBUTING.md.
cc @anurag629 (needs repo admin or an external account).