IronKyle38/price-tracker ? reverse-engineered prompt

Build me a simple price tracker app for online shopping.

I want to be able to add a product and the store page I want to watch, then run one command and have it check the current price, save it, and keep a running price history in a CSV file so I can see how the price changes over time.

Make it easy to customize for different products and stores, and keep the setup simple with a config file I can edit by hand. It should work from the command line, and if it needs browser automation, use that to grab the price from the page.

Please include clear instructions for installing and running it, and make sure the results get saved in an output folder in a format I can open later. If you need current docs for anything, feel free to look them up online.