邮件：修改邮件逻辑

shared/db/MailTemp.ts

@@ -0,0 +1,38 @@
+import BaseModel from './BaseModel';
+import { prop, Ref, mongoose } from '@typegoose/typegoose';
+import GMMail from './GMMail';
+
+class Reward {
+    @prop({ required: true })
+    id: number;
+    @prop({ required: true })
+    count: number;
+}
+
+export default class MailTemp extends BaseModel {
+
+    @prop({ required: true })
+    contentId: number;                  // dic_email_content.json中的id
+
+    @prop({ ref: 'GMMail', type: mongoose.Schema.Types.ObjectId })
+    mail: Ref<GMMail>;
+
+    @prop({ required: true })
+    sendTime: number;
+
+    @prop({ required: true })
+    endTime: number;
+
+    @prop({ required: true, type: String, _id: false})
+    params: string[];
+
+    @prop({ required: true })
+    sendName: string;                   // 发件人
+
+    @prop({ required: true })
+    hasGoods: boolean;
+
+    @prop({ required: true, type: Reward, default: [], _id: false })
+    goods: Array<Reward>;
+
+}