alex3dbros/megacnc — reverse-engineered prompt

Build me a web app for managing Megacell charger lithium cell testing devices. I want to add charger devices, assign each one to a project, and see a clean dark dashboard that shows which projects and devices are active.

The app should poll the charger hardware over HTTP every 5 seconds and save the readings, including cell voltage, capacity, ESR, current, and temperature. For each device, show the slots in an operator friendly screen with charts so I can quickly see how the cells are behaving during testing. Use a dark premium look with blue and lime accents.

Make it easy to run locally on Windows for testing with SQLite, and also support a full server setup with PostgreSQL, Redis, background workers, and scheduled polling. Include clear setup steps, environment config, database migrations, and a simple way to run the poller during development. If possible, also make it packageable as a desktop style launcher that starts the app and opens the browser.