Staxyfm/SparxMaths ? reverse-engineered prompt

Build me a Chrome extension for SparxMaths that helps answer questions and also saves bookworks automatically.

I want it to feel discreet on the page, so the normal Previous button area changes to something like Need Help? instead. When clicked, it should fetch an answer and show it in a small card in the top right of the screen, with the answer appearing after a short wait. It should also handle bookworks in the background so the user does not have to do them manually.

Make it simple to install as an unpacked extension, with a clear place to add a Gemini API key in the main script. Please keep the interface clean and modern, and make sure it works in Chromium browsers like Chrome and Edge. If you need to check current browser extension docs or API details, look them up online and use the latest guidance.