feat:新增赊销、抵抹账功能 合同新增销售模式字段，新增生成新合同接口 出库：出库多余配件处理

shiyunteng

2026-05-19 6332b04bc7991a310b13aef044082621d618479a

 platformx-business-finance-biz/src/main/java/com/by4cloud/platformx/business/service/ContractService.java

@@ -22,4 +22,10 @@
   R startApproval(Long id);

   R genCurrentOverdue();

   R refuseApproval(Long id);

   void takeEffect(Long id);

    R copyNewContract(Long id);
}