The product problem
The plan arrives as a sentence.
People rarely begin with a clean scheduling specification. They say they want to train for a race, cook for friends, or find time for a project. The product has to identify what the plan requires before it can look for room.
Wheni.sh turns that sentence into details the calendar can test: how long, how often, which days work, what must stay protected, and when the plan needs to be complete.
