piyush-eon/smart-product-price-tracker ? reverse-engineered prompt

Build me a web app called DealDrop that lets people paste in a product link from stores like Amazon, Zara, or Walmart and track the price over time.

I want users to be able to sign in with Google, save products to their own account, and see a clean dashboard with the current price, product image, and a simple price history chart. The app should check prices automatically every day, detect drops, and send an email alert when something gets cheaper. If a price changes, it should store that history so the chart updates nicely.

Use a modern, polished UI and make it feel easy for a normal person to use, with a simple add product flow and a list of tracked items. If you need to look up current docs online for anything, go ahead and do that.