Mohit-Nanda-Krishna/Scoops ? reverse-engineered prompt

Build me a lightweight shared protein scoop tracker for three fixed people, Mohit, Friend 1, and Friend 2.

I want it to keep track of one 80 scoop tub in real time, so if someone adds a scoop on one device, everyone else sees it update right away. It should have a simple profile picker, remember the last person used, and let us add a scoop, delete an entry, or undo the current user’s last scoop. Also show when the tub is getting low or empty, and automatically archive finished tubs and start a new one.

Please include a clean mobile friendly interface with current stats, daily streak, monthly stats, a calendar view, and recent activity grouped by date with search and friend filters. I also want JSON export and import, full reset, dark mode, offline support, and a little motion so it feels polished. If you need to check current docs for Firebase or deployment details, go ahead and look them up.