Add Ctrl+Shift+T keyboard shortcut (guarded by debugEnabled / nfc_kiosk_debug
setting) that prompts for a UID and fires _onEnrollTap or handleTap depending
on currentState (ENROLL vs IDLE). Persists last-used UID in localStorage.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Replaces the Task 18 stub renderEnroll with the full four-phase
implementation (password numpad → employee picker → tap-to-enroll →
result), adds _onEnrollTap wired to the NFC reading event, and exposes
it via window.__nfcKiosk.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Replace camera stub with real getUserMedia + canvas capture. Setup button
now starts NFC reader and camera together; camera failure is non-fatal when
photo is not required.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
