添加获取对手阵容，开始战斗，结算

shared/db/BattleRecord.ts

@@ -7,6 +7,15 @@ import { index, getModelForClass, prop, DocumentType } from '@typegoose/typegoos
 @index({ roleId: 1, battleId: 1 })
 @index({ battleCode: 1 })
 
+class Record {
+  @prop({ required: true, type: Number })
+  heroes: Array <number>; // 武将id
+  @prop({ required: false })
+  oppRoleId?: string; // pvp对手
+  @prop({ required: false })
+  pos?: number; // pvp位置
+}
+
 export default class BattleRecord extends BaseModel {
   @prop({ required: true })
   roleId: string;					// 角色 id
@@ -26,10 +35,8 @@ export default class BattleRecord extends BaseModel {
   status: number;						// 关卡状态 0-挑战中 1-挑战成功 2-挑战失败
   @prop({ required: true, default: 0 })
   star: number;						// 关卡状态 0-挑战中 1-挑战成功 2-挑战失败
-  @prop({ required: true })
-  record: {		              // 使用的武将等记录
-    heroes: Array <number>; // 武将id
-  };
+  @prop({ required: true, _id: false })
+  record: Record;		         // 使用的武将等记录
 
   public static async getBattleRecordByCode(battleCode: string, lean = true) {
     const result: BattleRecordType = await BattleRecordModel.findOne({ battleCode }).lean(lean);