Alert Webhook Listener Set up a local HTTP server to receive Nansen smart alert webhook payloads in real-time. How It Works Nansen smart alerts support a webhook channel type. When an alert fires, Nansen sends an HTTP POST with a JSON payload to your webhook URL. This skill sets up: 1. A local HTTP server (Node.js, zero external dependencies) that receives and displays alert payloads 2. HMAC-SHA256 signature verification so only authentic Nansen payloads are accepted 3. A public tunnel so Nansen's servers can reach your local machine This skill does NOT create or modify alerts. It sets up the…