Two issues with the "Autorizzazione capoturno" modal:
1. Backspace and digits did not work in the username/password fields. The
numpad component installs a window-level keydown handler (for the USB
caliper / keyboard wedge) that preventDefault()s digits, Backspace, Enter
etc. It swallowed those keys inside the modal inputs. Guard handleKeydown
to ignore events whose target is an editable field (INPUT/TEXTAREA/SELECT/
contentEditable); the numpad has no text inputs of its own.
2. The modal kept the previous username/password: opening only set the flag,
and closing via backdrop click did not clear the fields. Add
openSupervisorModal()/closeSupervisorModal() that always reset username,
password and error, and use them for every open (fermo_linea,
fine_produzione, out_of_tolerance) and close (backdrop, Annulla).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Adriano Dal Pastro
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