make PCS/CTN in stock in qty conversion round up

src/main/java/com/ffii/fpsms/modules/master/service/ItemUomService.kt

@@ -224,6 +224,22 @@ open class ItemUomService(
         return stockQty.setScale(0, RoundingMode.DOWN)
     }
 
+    /**
+     * Stock UOM code [PCS/CTN]* denotes pieces-per-carton; displayed stock qty should be whole cartons (integer).
+     */
+    private fun isPiecesPerCartonStockUomCode(stockUnit: ItemUom?): Boolean {
+        val code = stockUnit?.uom?.code?.trim() ?: return false
+        return code.startsWith("PCS/CTN", ignoreCase = true)
+    }
+
+    /** After ratio math: 2 decimals, or integer when stock unit is PCS/CTN… */
+    private fun finalizePreciseStockQty(stockUnit: ItemUom?, stockQty: BigDecimal): BigDecimal {
+        if (isPiecesPerCartonStockUomCode(stockUnit)) {
+            return stockQty.setScale(0, RoundingMode.HALF_UP)
+        }
+        return stockQty.setScale(2, RoundingMode.HALF_UP)
+    }
+
     /**
      * Convert purchase qty -> stock qty and keep decimal precision.
      * Used for PO flows where decimal quantity must be preserved.
@@ -242,7 +258,7 @@ open class ItemUomService(
             .multiply(stockUnit.ratioD ?: one)
             .divide(stockUnit.ratioN ?: one, calcScale, RoundingMode.HALF_UP)
 
-        return stockQty.setScale(2, RoundingMode.HALF_UP)
+        return finalizePreciseStockQty(stockUnit, stockQty)
     }
 
     /**
@@ -263,7 +279,7 @@ open class ItemUomService(
             .multiply(stockUnit.ratioD ?: one)
             .divide(stockUnit.ratioN ?: one, calcScale, RoundingMode.HALF_UP)
 
-        return stockQty.setScale(2, RoundingMode.HALF_UP)
+        return finalizePreciseStockQty(stockUnit, stockQty)
     }
 
     // See if need to update the response