Zero out panel and drawer construction offsets to fix drawer height

Fix a drawer whose height or fit is wrong by checking its height value and zeroing the panel and bottom offsets that affect it.

1. When a drawer's height or fit is wrong, open the drawer and check the drawer height value.

   ✓ Checked in the product on 9 October 2026

2. Select each side panel (left, right, front, back) and set its panel-level construction offset to zero.

   ✓ Checked in the product on 18 October 2026

3. At drawer level, scroll to bottom elevation and set it to zero.