Screen Time: Block apps until selected habits are completed

Right now Screen Time only limits an app after I've used it too much. I'd like the opposite: let me pick a few habits, and keep selected apps blocked until those habits are checked off for the day.

Example: Instagram stays locked until "Workout" and "Read" are done, then unlocks automatically.

The Screen Time permission is already there, so this should reuse what's built. It would also mean not having to run a separate blocker app alongside Habitify.

For what it's worth, Grit already shipped this — they added "block selected apps until a habit is done" in a recent update. I'd much rather stay with Habitify, since the cross-platform sync and integrations are far ahead. But this is the one thing making me look elsewhere.