The prompt card's number-key shortcuts matched only digit1..digit9
(the number row); numpad 1-9 fell through to ignored. Add a
parallel _numpadKeys list and check it in _onKey so the keypad
maps to the same 1-9 selection for Allow/Deny and question
options. numpadEnter was already handled. The hasPrimaryFocus
guard still lets digits type into a focused note field.
Adds four widget tests (numpad Allow/Deny, question option,
focused-note swallow). Closes T-310 (under UI epic T-276).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>