Summary

• Update README with v0.3.3 features (rename, --dry-run, doctor --ai, error codes, policy config)
• Add FAQ section to README
• Fix AEO issues on docs site (stale version, downloadUrl, expanded FAQPage schema)
• Add structured data (BreadcrumbList, HowTo) to guide/reference pages
• Add CHANGELOG.md, sitemap.xml, robots.txt
• Add documentation field to Cargo.toml