chore: bump to v1.4.2#12
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vvillait88 merged 1 commit intomainfrom Apr 8, 2026
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Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Closes audit item #12. Generic HMAC-SHA256 webhook signature verifier, Stripe-pattern (`t=<unix>,v1=<hex>` header). Useful both when AgentScore eventually ships outbound webhooks and as a generic helper for merchants verifying any HMAC-signed webhook source (Stripe, GitHub, etc.). Returns a structured result with `reason` set on failure (no_signatures / no_timestamp / timestamp_too_old / timestamp_in_future / signature_mismatch / malformed_header) so callers can differentiate transient vs permanent failures. Tolerance defaults to 300s (Stripe convention); set to 0 to disable timestamp checking for raw HMAC use cases. Also adds @types/node to devDependencies + tsconfig types: ["node"] — needed for the Buffer + crypto imports the helper uses. Existing modules were getting away without this because they didn't use Node-specific types at the source level (they slipped through DTS generation). 10 new tests covering all paths + multi-signature header. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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