v1.0.0

First release, by Louis Wright.

• LCP candidate detection (fetchpriority="high", preloaded image, else first content image; icons, nav and tracking pixels skipped).
• LCP checks: loading="lazy", JavaScript lazy-loading (data-src), fetchpriority="low", preload/lazy conflicts.
• Below-the-fold images and iframes without loading="lazy", with a configurable fold (foldImages).
• Lazy images without width/height; JS lazy-load libraries where native lazy loading would do.
• Text/JSON/SARIF/Markdown output, --fail-on, exit codes 0/1/2, allowlist with expiry, severity overrides.
• Composite GitHub Action with job summary.