v1.0.0

First release, by Louis Wright.

• Measures raw, gzip (level 9) and brotli (quality 11) sizes of JS and CSS in a build directory; source maps skipped.
• Per-glob budgets on any of raw/gzip/brotli, total JS and CSS budgets, near-budget warnings.
• Base snapshots (--snapshot, --base) with content-hash-insensitive names; growth and new-large-file checks.
• Unminified and duplicate file detection; stale budgets that match nothing.
• Text/JSON/SARIF/Markdown output, --fail-on, exit codes 0/1/2, allowlist with expiry, severity overrides.
• Composite GitHub Action with job summary.