* fix(#3840): reject a malformed feature `order` instead of coercing it `scripts/gen-features.cjs` was the one field validated by coercion rather than by shape. `Number('')` is 0, and `0x10`, `0b11`, `0o17`, `1e3`, `1.` and `.5` all coerce to finite numbers, so a fragment declaring a bare `order:` sorted to position 0 -- ahead of every real feature, in both the body and the generated table of contents -- with zero violations, a clean `--check` and `--write` exiting 0. That is a fail-open in a gate whose entire contract is a typed violation rather than a silent guess. `order` is now shape-checked against an optionally-signed decimal literal before coercion, mirroring how ID_RE guards `id`. The finite check stays: the regex alone would admit a literal long enough to overflow to Infinity. Surfaced by re-running the feature-implementation directive's design and QA steps against the code merged in #3845, which shipped without them. Refs #3840 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> * chore(#3840): backfill changeset PR number Refs #3840 Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> --------- Co-authored-by: sim <sim@local> Co-authored-by: Claude Opus 5 <noreply@anthropic.com>
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