Add five consulting service pages

Business Optimization, Supply Chain, Cybersecurity, Education and Fractional
Leadership, with copy verbatim from the content documents and the same layout
as the existing service pages (shared blocks in src/service.mjs). Adds them to
the Consulting menu (now two columns) and footer, restores the Consulting page
links to them, and fixes a mobile overflow from card glows that were not
anchored to their cards.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

build.mjs

@@ -7,7 +7,7 @@ import { page, eyebrow, btn } from './src/layout.mjs';
 
 const root = dirname(fileURLToPath(import.meta.url));
 const out = join(root, 'dist');
-const pages = ['home', 'about', 'portfolio', 'consulting', 'marketing', 'business-setup', 'contact', 'press'];
+const pages = ['home', 'about', 'portfolio', 'consulting', 'marketing', 'business-setup', 'business-optimization', 'supply-chain', 'cybersecurity', 'education', 'fractional', 'contact', 'press'];
 
 await rm(out, { recursive: true, force: true });
 await mkdir(out, { recursive: true });