shub39/Grit — reverse-engineered prompt

Build me a simple, polished productivity app for Android called Grit. I want it to combine a todo list and a daily habit tracker in one place, with a clean modern feel and no clutter. People should be able to add tasks, set reminders, track recurring habits every day, and quickly see their progress over time with visual analytics like habit maps or streak style history.

It should also send notification reminders and include home screen widgets so the most important habits and tasks are easy to check without opening the app. Keep the experience lightweight and friendly, more like a personal tool than an overcomplicated planner. A small web demo version would be great too if that fits naturally.

Please make it feel thoughtful and simple, with nice colors and smooth interactions. If there are obvious patterns or libraries people use for this kind of Android app now, look up the current docs online if you need to.