- Restructure UI with two-column paicha header (left: paicha number, right: location + stats)
- Add delete button on scanned rows in locked mode (matching boxing module style)
- Add cross-paicha scan warning with double vibration and vertical button dialog
- Show red background for already-on-shelf items on normal shelf (both locked/unlocked)
- Pre-check batch submit: block entire batch if any item is already on shelf
- Support DPAD up/down navigation in cross-paicha dialog, default to "否"
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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