Webhook Handler Idempotent webhook processing with HMAC signature verification, delivery tracking, and replay for NodeJS-Starter-V1. --- Metadata | Field | Value | | -------------- | -------------------------------------------------------- | | Skill ID | | | Category | API & Integration | | Complexity | Medium | | Complements | , , | | Version | 1.0.0 | | Locale | en-AU | --- Description Codifies webhook handling patterns for NodeJS-Starter-V1: HMAC-SHA256 signature verification for inbound webhooks, idempotent event processing with Redis-backed deduplication, typed event schema with registry…