meta-beacon v1.0.0

First release, by Louis Wright.

• Reads every HTML page in a build directory (dist/, public/, _site/, out/) and maps it to its public URL.
• Title and meta description: missing, empty, duplicated in the head, outside the head, too short or too long (characters, configurable).
• Open Graph: og:title, og:type, og:image, og:url presence; absolute URLs; og:url vs canonical; og:image resolved to the local file with PNG/JPEG/GIF/WebP dimensions, size and format checks; alt text.
• Twitter/X cards: valid twitter:card, image fallback to og:image, summary_large_image sizing.
• Head basics: <meta charset>, viewport, <html lang>, name="og:*" vs property= mix-ups.
• Text/JSON/SARIF/Markdown output, --fail-on, exit codes 0/1/2, allowlist with expiry, severity overrides.
• Composite GitHub Action with job summary.