feat: add subscribe message authorization before appointment submit

pages/appointment/appointment.js

@@ -3,6 +3,9 @@ const { formatDate } = require('../../utils/util')
 const { appointmentDB } = require('../../utils/api')
 const app = getApp()
 
+// 订阅消息模板ID
+const SUBSCRIBE_TEMPLATE_ID = 'Csf_dJU7DhvVFt_03sphPPBCGlnmcWQSPhgqfxHZ5RQ'
+
 Page({
   data: {
     form: {
@@ -106,10 +109,19 @@ Page({
     if (!this.validateForm()) return
     if (this.data.submitting) return
 
+    // 先请求订阅消息授权，再提交预约
+    try {
+      await wx.requestSubscribeMessage({
+        tmplIds: [SUBSCRIBE_TEMPLATE_ID]
+      })
+    } catch (e) {
+      // 用户拒绝授权也允许继续提交，只是收不到通知
+      console.warn('订阅消息授权失败或用户拒绝', e)
+    }
+
     this.setData({ submitting: true })
 
     try {
-      // 通过后端API创建预约
       const openid = app.globalData.userInfo.openid
       await appointmentDB.create({ ...this.data.form, openid })