feat(overseas): select stock transfer sources and follow relabel

src/modules/overseas-warehouse/api/warehouseTransfers.ts

@@ -84,6 +84,23 @@ export interface WarehouseTransferDetailDto extends WarehouseTransferSummaryDto
   relabelBindings: WarehouseTransferRelabelBindingDto[]
   customerConfirmedAt?: string | null
   actualShipAt?: string | null
+  sourceOrders?: Array<{ lastlegOrderId: string; lastlegOrderNo?: string | null; inboundOrderId: string; inboundCode?: string | null }>
+  allocations?: Array<{ inventoryPositionId: string; inboundOrderId: string; inboundCode?: string | null; palletId: string; palletNo?: string | null; packageCount: number; status: string; destinationInventoryPositionId?: string | null; skuCode?: string | null }>
+}
+
+export interface AllocateWarehouseTransferPayload {
+  idempotencyKey: string
+  allocations: Array<{ inventoryPositionId: string; palletId: string; packageCount: number }>
+}
+
+/** The caller must use confirmed source positions, never aggregate inventory rows. */
+export async function allocateWarehouseTransfer(customerId: string, transferNo: string, payload: AllocateWarehouseTransferPayload) {
+  const response = await http.post<ApiEnvelope<WarehouseTransferDetailDto>, ApiEnvelope<WarehouseTransferDetailDto>>(
+    `/platform/v1/last-leg/warehouse-transfers/${encodeURIComponent(transferNo)}/allocations`,
+    payload,
+    { params: { customerId } },
+  )
+  return unwrapApiResponse(response)
 }
 
 export async function listWarehouseTransfers(customerId: string, query: WarehouseTransferQuery) {