活动：活动按照合集调整数据结构

game-server/app/services/dailyCoinService.ts

@@ -1,6 +1,7 @@
 import { ACTIVITY_TYPE, DAILY_MEAL_TYPE } from '../consts';
 import { ActivityModel, ActivityModelType } from '../db/Activity';
 import { ActivityDailyCoinModel, ActivityDailyCoinModelType } from '../db/ActivityDailyCoin';
+import { ActivityGroupModel } from '../db/ActivityGroup';
 import { ServerlistModel } from '../db/Serverlist';
 import { DailyCoinData } from '../domain/activityField/dailyCoinField';