press/click: refuse a zero-area target instead of tapping its origin #3841

A selector that resolves to a zero-size node is tapped at the node's origin, and the command reports success.

Found on a physical iPhone in #1296 (comment). On SpringBoard home page 2, the page-1 icons stay in the tree with 0×0 rects and hittable: false. press 'label="Clock"' resolves to (0, 0), taps there, and reports success.

Cause on main: normalizeRect (packages/kernel/src/rect-center.ts) refuses only a negative width or height, so a 0×0 rect passes. resolveInteractionTouchPoint (packages/selectors/src/interaction-touch-point.ts) then returns the rect's center as a resolved point.

Required behavior:

• resolveInteractionTouchPoint returns invalid for a target with zero width or zero height. Do not change normalizeRect, because other readers use zero-size rects legitimately.
• A zero-area target refuses the interaction with the existing typed reason for an unresolvable point. Do not match error text.
• A regression test in packages/selectors fails before the fix and passes after it. Add one command-level case that shows press refuses and does not dispatch a tap.