refund_report.json in kanade-0.1.0.beta2

- old
+ new

@@ -4,7 +4,12 @@
     "id": 451,
     "name": "Digital Camera",
     "expireAt": "2019-03-30T06:52:44+09:00",
     "price": "99.95",
     "available": true
+  },
+  "addendumReport" : {
+    "ID": 1234,
+    "affectedProduct": null,
+    "addendumReport": null
   }
 }