Add interactions

Produce a complete interaction contract in code: intent, target, phases, state owner, feedback, cleanup, and test instructions.

1. Inventory each user intent

For every requested action, record the actor, target, trigger, start/update/end or cancel phases, one application state transition, feedback, and desktop/XR test route. Keep separate rows when two actions have different ownership or phase models, even when they use the same object.

Complete this step when every action has a target, phase model, state owner, feedback, and user-test path.

2. Select one event family