SEO: repair routes found in Search Console

[TeoSlayer]

Summary

• consolidate retired URLs reported by Search Console onto their current successor pages
• prevent legacy .html URLs from redirecting into 404 responses
• mark the RSS document as non-indexable while preserving discovery links
• make the site-integrity check reject malformed redirects and destinations that are not generated routes

Search Console actions

• resubmitted https://pilotprotocol.network/sitemap.xml
• confirmed successful read on Sep 3 with 274 discovered pages (previously 73, last read Mar 15)
• queued priority crawls for representative high-value pages
• started validation for the resolved redirect error
• confirmed no manual actions or security issues and 47 valid breadcrumb items / 0 invalid

Verification

• npm run check:plain
• npm run build
• npm run check:site
• Cloudflare Pages parser: 33 valid redirect rules, 14 valid header rules
• every added historical route returns a single 301 to a generated 200 target locally

[github-actions]

🚀 Preview deployed to Cloudflare Pages

• Commit deploy URL: https://b5bd063c.pilotprotocol.pages.dev
• Branch alias: https://codex/search-console-indexing-cleanup.pilotprotocol.pages.dev (may take ~30s to propagate)
• Commit: ae4d69c0bd68be478048f724e153973004ade55a