fix: StockMovement CHECK constraint violation — store Quantity as negative for reduce operations, pass correct MovementType from RecordLoss

src/CMSMicroservice.WebApi/Services/InventoryService.cs

@@ -181,7 +181,9 @@ public class InventoryService : InventoryContract.InventoryContractBase
                     Id = inventoryItem.Id,
                     Quantity = Math.Abs(difference),
                     FromReserved = false,
-                    ReferenceNumber = request.ReferenceNumber
+                    ReferenceNumber = request.ReferenceNumber,
+                    MovementType = Domain.Enums.StockMovementType.AdjustmentMinus,
+                    Note = "Stock adjustment (decrease)"
                 },
                 context.CancellationToken);
 
@@ -332,7 +334,9 @@ public class InventoryService : InventoryContract.InventoryContractBase
                 Id = inventoryItem.Id,
                 Quantity = request.Quantity,
                 FromReserved = false,
-                ReferenceNumber = request.ReferenceNumber ?? $"LOSS-{DateTime.UtcNow:yyyyMMddHHmmss}"
+                ReferenceNumber = request.ReferenceNumber ?? $"LOSS-{DateTime.UtcNow:yyyyMMddHHmmss}",
+                MovementType = (Domain.Enums.StockMovementType)request.LossType,
+                Note = string.IsNullOrWhiteSpace(request.Reason) ? null : request.Reason
             },
             context.CancellationToken);