burakmiracbol/hbttrckr ? reverse-engineered prompt

Build me a cross platform habit tracker app in Flutter called hbttrckr, focused on making it easy to track daily habits and see progress over time.

I want the app to let users create different kinds of habits, like simple done or not done tasks, number based habits, and timed habits. It should show a calendar style main screen with daily completion markers, streaks, habit strength, completion rates, and monthly progress stats. Add notes for each habit, skip and daily progress tracking, notifications, and a settings area where users can save their preferences on the device.

Make it look polished and modern, with a glassy, glowing style, capsules for important actions, and Material 3 as the base design. If you can, keep the structure flexible so it can later support different visual styles for different platforms. It should feel good on mobile and desktop, and I’d like the app to already be set up for Google sign in and Firebase backed features where needed. Use the existing assets and make sure the app runs cleanly on Flutter.