🎈 perf(数据库): 优化数据库索引

shared/db/BattleRecord.ts

@@ -5,8 +5,6 @@ import { LineupParam } from '../domain/rank';
 /**
   * 战斗记录接口
   */
-@index({ roleId: 1, battleId: 1 })
-@index({ battleCode: 1 })
 
 class Record {
     @prop({ required: true, type: Number })
@@ -39,6 +37,8 @@ class Record {
     encourageCnt?: number;
 }
 
+@index({ roleId: 1, battleId: 1 })
+@index({ battleCode: 1 })
 export default class BattleRecord extends BaseModel {
     @prop({ required: true })
     roleId: string;					// 角色 id