6.18.0: Улучшения диалога товара и кнопки прогрессии

play-life-web/src/components/ShoppingItemDetail.jsx

@@ -196,7 +196,8 @@ function ShoppingItemDetail({ itemId, onClose, onRefresh, onItemCompleted, onNav
                       type="button"
                       className="progression-control-btn progression-control-plus"
                       onClick={() => {
-                        const current = parseFloat(volumeValue) || 0
+                        const base = item.last_volume ?? item.volume_base ?? 1
+                        const current = volumeValue.trim() ? parseFloat(volumeValue) : base
                         const step = item.volume_base || 1
                         setVolumeValue((current + step).toString())
                       }}