fix(wms): 物料入库可以追加物料，单价可以为0

src/views/wms/inStockBill/index.vue

@@ -590,11 +590,11 @@ const handleAddSubmit = () => {
 
       // 验证物料信息的完整性
       const invalidMaterials = selectedProducts.value.filter((material) => {
-        return !material.unitPrice || material.unitPrice <= 0 || !material.inStockAmount || material.inStockAmount <= 0 || !material.warehouseId;
+        return !material.inStockAmount || material.inStockAmount <= 0 || !material.warehouseId;
       });
 
       if (invalidMaterials.length > 0) {
-        proxy?.$modal.msgError('请完善物料信息，确保单价和数量都大于0，且选择了仓库');
+        proxy?.$modal.msgError('请完善物料信息，确保数量都大于0，且选择了仓库');
         return;
       }