saved initate payment and checktxn status

src/main/java/com/billpaymentservice/bbps/util/EntityRelationshipUtil.java

@@ -62,5 +62,29 @@ public class EntityRelationshipUtil {
             }
         }
     }
+    
+    public static void linkTransactionMasterRelationships(TransactionMaster entity) {
+
+        if (entity == null) return;
+
+        // ✅ DeviceBlockTag relationship link karna
+        if (entity.getDeviceBlockTags() != null) {
+            entity.getDeviceBlockTags().forEach(tag -> {
+                if (tag != null) {
+                    tag.setTransactionMaster(entity);
+                }
+            });
+        }
+
+        // ✅ CustomerParamTransaction relationship link karna
+        if (entity.getCustomerParams() != null) {
+            entity.getCustomerParams().forEach(param -> {
+                if (param != null) {
+                    param.setTransactionMaster(entity);
+                }
+            });
+        }
+    }
+
 }