financial-astrology-research/trading-signal-processing ? reverse-engineered prompt

Build me a small serverless service that can receive TradingView alert webhooks and process them before sending the final trading signal to Zignaly.

I want it to act like a middle layer between TradingView and my broker or bot, so it can filter noisy signals, combine them with a few extra indicators, and only forward the ones that make sense. The webhook should come in through an AWS Lambda endpoint, and the app should be easy to deploy with Serverless. Please include a clean handler, basic validation of incoming alerts, and a simple way to plug in the signal processing rules.

The main goal is to accept a strategy alert, decide whether it should be ignored or passed through, and then post the composed trade action to Zignaly. If useful, add a sample config or environment variables for the endpoint and any credentials. Keep it simple, TypeScript based, and ready to deploy, and look up current docs online if you need to.