Carry actual flow state and freeze callback round identity

Local review candidate only. Explicitly selected inherited prerequisites and prior repair patches; unrelated WIP and independent MQ fixes are excluded. No push or deployment authorized.

src/main/java/com/yunhai/flowcenter/service/OapiFlowService.java

@@ -223,6 +223,15 @@ public class OapiFlowService {
         vo.setDuplicated(outcome.duplicated);
         vo.setBranch(outcome.branch);
         vo.setApplyRound(outcome.applyRound);
+        instanceRepository.findById(outcome.instanceId).ifPresent(current -> {
+            int currentRound = current.getApplyRound() == null ? 1 : current.getApplyRound();
+            int outcomeRound = outcome.applyRound == null ? 1 : outcome.applyRound;
+            if (currentRound == outcomeRound) {
+                vo.setStatus(current.getStatus());
+                vo.setVersion(current.getVersion());
+            } // 已被另一请求推进到新轮时，让消费方按实例查询恢复，不混装两轮证据。
+
+        });
         return vo;
     }
 
@@ -252,6 +261,8 @@ public class OapiFlowService {
         vo.setInstanceId(existing.getId());
         vo.setDuplicated(true);
         vo.setApplyRound(existing.getApplyRound());
+        vo.setStatus(existing.getStatus());
+        vo.setVersion(existing.getVersion());
         vo.setBranch(token != null && token.equals(existing.getApplyRequestToken())
                 ? FlowApplyRetryModels.Branch.SAME_REQUEST : FlowApplyRetryModels.Branch.CONCURRENT_CREATED);
         log.warn("[flow-center] 并发建件命中既有实例：instance={} biz={}/{} branch={}",
@@ -1112,6 +1123,8 @@ public class OapiFlowService {
     public OapiModels.InstanceVo toInstanceVo(FlwInstance instance) {
         OapiModels.InstanceVo vo = new OapiModels.InstanceVo();
         vo.setInstanceId(instance.getId());
+        vo.setApplyRound(instance.getApplyRound());
+        vo.setRequestToken(instance.getApplyRequestToken());
         vo.setStatus(instance.getStatus());
         vo.setVersion(instance.getVersion());
         vo.setBizTitle(instance.getBizTitle());