fix: resolve multiple miniprogram bugs and extend admin console

- fix manual bind stuck at BLE scan, redirect to bind-success
- add 15s timeout and stopScan to ble-connect
- add stopScan method to ble.js
- add back-to-home button on bind-success page
- fix field name in subscribe-plans (plan -> plan_type)
- fix history.js to handle created_at field
- fix index.js to handle device name field
- add subscription route alias in request.js
- extend admin cloud function from 1 to 9 actions
- add mock mode to admin-console request.js
- remove unused discover page and legacy record function

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

miniprogram/pages/scan/scan.js

@@ -47,16 +47,22 @@ Page({
 
   bindDevice: function (deviceId) {
     var self = this
+    self.setData({ scanning: true, error: '' })
     http.post('/api/v1/device/bind', { device_id: deviceId }).then(function (data) {
       self.setData({ scanning: false })
-      wx.navigateTo({
-        url: '/pages/ble-connect/ble-connect?device_id=' + deviceId + '&bind_token=' + data.bind_token
+      wx.redirectTo({
+        url: '/pages/bind-success/bind-success?device_id=' + deviceId
       })
     }).catch(function (err) {
-      self.setData({
-        scanning: false,
-        error: err.message || '绑定失败'
-      })
+      self.setData({ scanning: false })
+      if (err && err.code === 2001) {
+        wx.showToast({ title: '已绑定设备', icon: 'none' })
+        setTimeout(function () {
+          wx.navigateBack()
+        }, 1500)
+      } else {
+        self.setData({ error: err.message || '绑定失败' })
+      }
     })
   },