[codex] Add five-minute repository maintainer loop

[mberman84]

What changed

• adds Loop 030, The five-minute repository maintainer loop, credited to Peter Steinberger
• publishes the copy-ready prompt, verification criteria, implementation guidance, and source attribution
• regenerates the public catalogs, detail pages, feed, sitemap, and versioned social cards

Why

Turns Peter's five-minute Codex maintainer-orchestration workflow into a bounded Loop Library entry with explicit authorization, proof, escalation, and stopping rules.

Validation

• node scripts/check.mjs
• npm --prefix worker run check (12 tests)
• SEO/GEO audit: 0 critical, high, or medium findings
• browser verification at 1200×630 in light mode
• homepage search verification
• autoreview clean: no accepted/actionable findings