update TRF fix

src/main/java/com/ffii/fpsms/modules/deliveryOrder/service/DoWorkbenchMainService.kt

@@ -2344,7 +2344,7 @@ return MessageResponse(
         onHandQtyBeforeUpdate: Double?,
     ): Double {
         if (onHandQtyBeforeUpdate != null) return onHandQtyBeforeUpdate
-        val latestLedger = stockLedgerRepository.findLatestByItemId(itemId).firstOrNull()
+        val latestLedger = stockLedgerRepository.findFirstByItemIdAndDeletedFalseOrderByDateDescIdDesc(itemId)
         return latestLedger?.balance ?: (inventory.onHandQty ?: BigDecimal.ZERO).toDouble()
     }
 

src/main/java/com/ffii/fpsms/modules/stock/service/StockInLineService.kt

@@ -221,7 +221,7 @@ open class StockInLineService(
         )
     }
     */
-    fun assignLotNo(): String {
+    open fun assignLotNo(): String {
         val prefix = "LT"
         val midfix = LocalDate.now().format(CodeGenerator.DEFAULT_FORMATTER)
         val fullPrefix = "$prefix-$midfix"
@@ -248,7 +248,7 @@ open class StockInLineService(
      * - 年份使用兩位數（例如 2026-03-18 -> 260318）
      * - 序號仍然與現有規則一致，且跨 inventory_lot / stock_in_line 同步遞增
      */
-    fun assignLotNoForJo(planStart: LocalDate?): String {
+    open fun assignLotNoForJo(planStart: LocalDate?): String {
         val prefix = "LT"
         val date = planStart ?: LocalDate.now()
         // 兩位數年份 + MMdd，例如 2026-03-18 -> "260318"

src/main/java/com/ffii/fpsms/modules/stock/service/StockOutLineService.kt

@@ -1512,7 +1512,7 @@ open fun newBatchSubmit(request: QrPickBatchSubmitRequest): MessageResponse {
 
         val outQty = stockOutLine.qty?.toDouble() ?: 0.0
         // Use latest ledger balance (same pattern as createStockLedgerForStockIn) so balance is correct when multiple actions run in one transaction
-        val latestLedger = stockLedgerRepository.findLatestByItemId(item.id!!).firstOrNull()
+        val latestLedger = stockLedgerRepository.findFirstByItemIdAndDeletedFalseOrderByDateDescIdDesc(item.id!!)
         val previousBalance = latestLedger?.balance ?: (inventory.onHandQty ?: BigDecimal.ZERO).toDouble()
         val newBalance = previousBalance - outQty
 
@@ -1818,7 +1818,7 @@ open fun newBatchSubmit(request: QrPickBatchSubmitRequest): MessageResponse {
         if (onHandQtyBeforeUpdate != null) {
             return onHandQtyBeforeUpdate
         }
-        val latestLedger = stockLedgerRepository.findLatestByItemId(itemId).firstOrNull()
+        val latestLedger = stockLedgerRepository.findFirstByItemIdAndDeletedFalseOrderByDateDescIdDesc(itemId)
         return latestLedger?.balance ?: (inventory.onHandQty ?: BigDecimal.ZERO).toDouble()
     }
 
@@ -2309,12 +2309,23 @@ open fun createStockOutBatch(request: BatchStockOutRequest): BatchStockOutResult
     val savedLines = stockOutLineRepository.saveAll(stockOutLinesToInsert)
 
     // 5) 批量组装 ledger（避免每笔 createStockLedgerForStockOut）
-    savedLines.forEach { sol ->
+    // Keep per-item running balance so multiple lines in the same batch
+    // chain from the previous ledger balance instead of reusing inventory.onHandQty.
+    val runningLedgerBalanceByItemId = mutableMapOf<Long, Double>()
+    val inventoryByItemId = mutableMapOf<Long, Inventory>()
+    savedLines.sortedBy { it.id ?: Long.MAX_VALUE }.forEach { sol ->
         val item = sol.item ?: return@forEach
-        val inv = itemUomService.findInventoryForItemBaseUom(item.id!!) ?: return@forEach
+        val itemId = item.id ?: return@forEach
+        val inv = inventoryByItemId[itemId]
+            ?: itemUomService.findInventoryForItemBaseUom(itemId)?.also { inventoryByItemId[itemId] = it }
+            ?: return@forEach
         val delta = BigDecimal.valueOf(sol.qty ?: 0.0)
-        val prevBalance = inv.onHandQty?.toDouble() ?: 0.0
-val newBalance = prevBalance - delta.toDouble()
+        val prevBalance = runningLedgerBalanceByItemId[itemId]
+            ?: run {
+                val latestLedger = stockLedgerRepository.findFirstByItemIdAndDeletedFalseOrderByDateDescIdDesc(itemId)
+                latestLedger?.balance ?: (inv.onHandQty ?: BigDecimal.ZERO).toDouble()
+            }
+        val newBalance = prevBalance - delta.toDouble()
 
         ledgersToInsert += StockLedger().apply {
             this.stockOutLine = sol
@@ -2323,12 +2334,13 @@ val newBalance = prevBalance - delta.toDouble()
             this.outQty = delta.toDouble()
             this.balance = newBalance
             this.type = request.type
-            this.itemId = item.id
+            this.itemId = itemId
             this.itemCode = item.code
-            this.uomId = itemUomRespository.findByItemIdAndStockUnitIsTrueAndDeletedIsFalse(item.id!!)?.uom?.id
+            this.uomId = itemUomRespository.findByItemIdAndStockUnitIsTrueAndDeletedIsFalse(itemId)?.uom?.id
                 ?: inv.uom?.id
             this.date = today
         }
+        runningLedgerBalanceByItemId[itemId] = newBalance
     }
     stockLedgerRepository.saveAll(ledgersToInsert)
 

src/main/java/com/ffii/fpsms/modules/stock/service/StockOutLineWorkbenchService.kt

@@ -527,7 +527,7 @@ if (updated == 0) {
         onHandQtyBeforeUpdate: Double?,
     ): Double {
         if (onHandQtyBeforeUpdate != null) return onHandQtyBeforeUpdate
-        val latestLedger = stockLedgerRepository.findLatestByItemId(itemId).firstOrNull()
+        val latestLedger = stockLedgerRepository.findFirstByItemIdAndDeletedFalseOrderByDateDescIdDesc(itemId)
         return latestLedger?.balance ?: (inventory.onHandQty ?: BigDecimal.ZERO).toDouble()
     }