Handle invalid codes and duplicate or closed-box scans

Read the reason for an invalid code, pick the panel manually, and confirm before adding to a closed box.

1. Invalid codes show the reason with a 'Select panel manually' action that opens the manual panel picker.

   ✓ २१ ऑक्टोबर, २०२६ रोजी प्रॉडक्टमध्ये तपासले

   

   मार्गदर्शकाकडे परत जा✕

   

2. Scanning a panel that is already in a box shows an error toast '<panel> is already in this box' (no Invalid QR popup).

   ✓ २१ ऑक्टोबर, २०२६ रोजी प्रॉडक्टमध्ये तपासले

   

   मार्गदर्शकाकडे परत जा✕

   

3. Scanning into a box that has already been closed first asks you to confirm before the panel is added.

   ✓ २१ ऑक्टोबर, २०२६ रोजी प्रॉडक्टमध्ये तपासले

   

   मार्गदर्शकाकडे परत जा✕