Remove landproDATA vendor references from public content

What was done

landproDATA is a paid vendor Bailey uses to track projects. Publicly naming the tool gives the vendor free advertising and doesn’t serve users. Removed all user-facing mentions:

• Pillar page (/about/bailey/) data provenance note: replaced “Our landproDATA account covers…” with “Stats refreshed quarterly from Bailey’s project records.”
• Pillar page relationships note: replaced “Events tracked in Bailey’s landproDATA account” with “Events from Bailey’s project records”

Also simplified the Blaine County language on the pillar page: Blaine is now lumped into the “historical counties” list alongside Valley, Payette, and Gem rather than getting a hedged paragraph. This is a copy simplification only — Blaine remains in the 6-county service area map, schema areaServed, and has its own county hub page.

Why

Vendor names in public content create an implicit endorsement. Bailey’s data provenance is important internally but users don’t need to know which SaaS tool generates the numbers.

Files affected

• src/pages/about/bailey.astro — 2 data-note replacements + Blaine paragraph simplified
• src/scripts/verify-build.sh — Check 16 added (landproDATA leakage detection)