fix the prod qty in forecast

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

@@ -432,11 +432,11 @@ open class ProductionScheduleService(
                     val bom = bomService.findByItemId(itemId)
                     ?: throw NoSuchElementException("BOM not found for Item ID $itemId.")
 
-                    // 4. Update Prod Schedule Line fields
+                    // 4. Update Prod Schedule Line fields (keep prodQty = total = outputQty * batchNeed)
+                    val outputQtyDouble = bom.outputQty?.toDouble()
+                        ?: throw IllegalStateException("BOM output quantity is null for Item ID $itemId.")
                     prodScheduleLine.apply {
-                        // Use bom.outputQty, ensuring it's treated as Double for prodQty
-                        prodQty = bom.outputQty?.toDouble()
-                            ?: throw IllegalStateException("BOM output quantity is null for Item ID $itemId.")
+                        prodQty = outputQtyDouble * batchNeed.toLong().coerceAtLeast(0)
                         approverId = approver?.id
                     }
                     
@@ -966,7 +966,8 @@ open class ProductionScheduleService(
             savedItem.refScheduleId = detailedScheduleObj.id;
             savedItem.approverId = null;
             savedItem.estCloseBal = detailedScheduleObj.outputQty;
-            savedItem.prodQty = detailedScheduleObj.outputQty
+            // prodQty = total production = batchQty (outputQty per batch) * batchNeed
+            savedItem.prodQty = detailedScheduleObj.outputQty * detailedScheduleObj.batchNeed.toInt().coerceAtLeast(0)
             savedItem.type = "detailed"
             savedItem.assignDate = LocalDateTime.now().dayOfMonth.toLong();
             savedItem.weightingRef = detailedScheduleObj.needQty