KRB phase 1 folder + SEO title + meta-description test

Run order:
1. krb-phase1-folder-meta-title-test-20260612-140440-preflight.js (read-only)
2. krb-phase1-folder-meta-title-test-20260612-140440-live.js (mutating)

This revision adds title tags via page.setTitle() as well as meta descriptions via page.setDescription().

Ordering preserved:
- Create/match the About Us directory page first
- Create/match the About Us folder immediately after
- Create/match child pages in that folder after the folder exists

The live script does not publish, delete, add body/components, or create CMS items.
