A change at the arc level — a becoming, a change of direction, a floor that moved. This is the big lever; it's meant to reshape what's below.
For now this records the entry to the arc's log. How a logged shift adjusts the plan is the logic we'll wire once you've decided it — the button and the capture come first.
New client intake
Capture everything — who they are, what they do, their hopes and dreams. The arc gets built from this, the way the two example clients' were.