Timebox

Add points and a family leaderboard: 10 points for finishing on time, a 10-point bonus for finishing early, 1 to 9 for partial work, ranked by day, week or month.

Add family use: each family member picks themselves with their own code, sees the whole family's timeboxes, changes only their own, and shares one list through an invite link.

Fix: dark mode rule, bigger tap targets, clearer field label in the edit sheet.

First version: plan timeboxes, focus with a hard-stop timer, review how each box went.