Humerez-Sebas/trading-emulator ? reverse-engineered prompt

Build me a web app for practicing manual trading by replaying historical candles one by one, like a market simulator. I want to be able to step through the chart, place buy and sell orders, set stop loss and take profit, draw on the chart, and see session stats and trade results as I go.

The app should require login, save each user’s sessions and settings, and sync them across devices. It should load market data from cloud storage directly in the browser, cache it locally so it can run smoothly after the first load, and feel fast and clean on a charting view like TradingView. Use a simple modern frontend, and if you need current docs for the chart library or auth setup, look them up online.

Please make it ready to run locally and easy to deploy as a static app.