anchor.diff:      3: "週毎",
     };
   
  -  int id;
  -  String name;
  -  String description;
  -  String category;
  -  int state;
  -  String stateClass;
  -  int fuel, ammo, steel, bauxite;
  -  int progress;
  -  String cycle;
  +  @observable int id;
  +  @observable String name;
  +  @observable String description;
  +  @observable String category;
  +  @observable int state;
  +  @observable String stateClass;
  +  @observable int fuel, ammo, steel, bauxite;
  +  @observable int progress;
  +  @observable String cycle;
   
     Quest(Map<String, dynamic> data)
         : id = data["id"],
  
positive.code:   for (var questData in data["quests"]) {
      assistant.quests.add(new Quest(questData));
    }
  }
negative.code: part of kcaa;
  
  class Quest extends Observable {
    static final Map<int, String> CATEGORY_MAP = <int, String>{
      1: "編成",
      2: "出撃",
  