feat: 收益互换开平仓及收益结算接入OA移动审批

#EQD-6425 国联民生-衍生品系统移动审批（提交OA流程）
- 审批节点支持配置“关联OA移动审批”
- 创建OA流程并记录请求、requestId、状态及异常备注
- 支持OA轮询同步审批通过、退回和归档状态
- 本地通过、拒绝、撤回时同步强制归档未结束OA流程
- 增加审批列表OA备注展示及本地Mock联调接口
- 新增OA审批记录表和数据库升级脚本
- OA移动审批使用独立查询地址及isnextflow配置，不影响交易确认书OA

YLErpDAL/Modules/TradeModule/TradeBLL.cs

@@ -287,6 +287,13 @@ namespace YLErp.BLL
                 .Select(a => new { a.order, a.roleId })
                 .ToList()
                 .ToDictionary(a => a.order, a => a.roleId);
+            var approvalNodes = db.approvalprocess
+                .Select(a => new { a.id, a.processType, a.order, a.node })
+                .ToList();
+            var oaRecords = db.tradeApprovalOaResult
+                .Where(x => swapTradeIds.Contains(x.trade_id) && x.is_valid)
+                .Select(x => new { x.id, x.trade_id, x.approval_process_id, x.status, x.oa_msg })
+                .ToList();
 
             foreach (var tradeLinq in retListResult.rows)
             {
@@ -305,6 +312,29 @@ namespace YLErp.BLL
                     tradeLinq.ProcessRoleName = name;
                 }
 
+                if (tradeLinq.TradeType == "收益互换")
+                {
+                    var processType = tradeLinq.TradeStatus == "平仓待复核" || tradeLinq.TradeStatus == "行权待复核" || tradeLinq.TradeStatus == "互换待复核"
+                        ? "CloseProcess"
+                        : "TradeProcess";
+                    var currentNode = approvalNodes
+                        .Where(x => x.processType == processType
+                            && x.order == tradeLinq.ProcessOrderId
+                            && (x.node == tradeLinq.ProcessOrderBranch || x.node == 0))
+                        .OrderByDescending(x => x.node == tradeLinq.ProcessOrderBranch)
+                        .FirstOrDefault();
+                    var oa = currentNode == null ? null : oaRecords
+                        .Where(x => x.trade_id == tradeLinq.id && x.approval_process_id == currentNode.id)
+                        .OrderByDescending(x => x.id)
+                        .FirstOrDefault();
+                    if (oa != null)
+                    {
+                        tradeLinq.OaRemark = string.IsNullOrWhiteSpace(oa.oa_msg)
+                            ? oa.status
+                            : oa.status + "：" + oa.oa_msg;
+                    }
+                }
+
                 if (tradeLinq.TradeType == "远期" || tradeLinq.TradeType == "掉期")
                 {
                     var option = db.trade_forward.FirstOrDefault(x => x.TradeId == tradeLinq.id);