igor-gomes-u/electricity-price ? reverse-engineered prompt

Build me a simple Flask web app that shows Swedish electricity prices for a chosen date.

I want a homepage with a form where I can pick a date and a Swedish region, then see the hourly prices for that day in a clear table and an interactive chart. It should pull the data from the public electricity price API, process it in Python, and display the results nicely with a clean Bootstrap style.

Please include basic health endpoints, a metrics endpoint for monitoring, and make the app easy to run locally with Docker. Add tests for the main behavior too, since I’d like this to be reliable. Keep it stateless and straightforward, with no database. If you need current details about the API or chart setup, look up the latest docs online first.