皮肤：修改存储逻辑

shared/db/Hero.ts

@@ -4,6 +4,7 @@ import Equip, { } from './Equip';
 import { CounterModel } from './Counter';
 import { COUNTER, EQUIP_TYPE } from '../consts';
 import { reduceCe } from '../pubUtils/util';
+import Skin from './Skin';
 
 class CeAttrData {
     @prop({ required: true })
@@ -33,9 +34,11 @@ export class Connect {
     level: number;
 }
 
-class Skin {
+export class HeroSkin {
     @prop({ required: true })
     id: number;
+    @prop({ ref: 'Skin', type: mongoose.Schema.Types.ObjectId })
+    skin: Ref<Skin>;
     @prop({ required: true })
     enable: boolean;
 }
@@ -131,8 +134,8 @@ export default class Hero extends BaseModel {
     favourLv: number;				// 好感等级
     @prop({ required: true, type: Connect, default: [], _id: false })
     connections: Connect[];					// 羁绊
-    @prop({ required: true, type: Skin, default: [], _id: false })
-    skins: Skin[];								// 皮肤
+    @prop({ required: true, type: HeroSkin, default: [], _id: false })
+    skins: HeroSkin[];								// 皮肤
 
     @prop({ required: true, type: EPlace, default: getInitialEplace(), _id: false })
     ePlace: EPlace[]; // 武将装备引用数组