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/model/OapiModels.java

@@ -107,6 +107,8 @@ public final class OapiModels {
     @Data
     public static class InstanceVo {
         private Long instanceId;
+        private Integer applyRound;
+        private String requestToken;
         private Integer status;
         private Integer version;
         private String nodeSummary;