feat: 增加充值功能

src/service/models/pay.ts

@@ -0,0 +1,23 @@
+import { Schema, model, models } from 'mongoose';
+
+const PaySchema = new Schema({
+  userId: {
+    type: Schema.Types.ObjectId,
+    ref: 'user',
+    required: true
+  },
+  time: {
+    type: Number,
+    default: () => Date.now()
+  },
+  price: {
+    type: Number,
+    required: true
+  },
+  orderId: {
+    type: String,
+    required: true
+  }
+});
+
+export const Pay = models['pay'] || model('pay', PaySchema);

src/service/models/user.ts

@@ -16,7 +16,7 @@ const UserSchema = new Schema({
   },
   balance: {
     type: Number,
-    default: 0
+    default: 0.5
   },
   accounts: [
     {