fix: 修复蓝牙连接误报与 WiFi 列表获取问题，完善一键添加本人

- connectedDevice 忽略 connect 过程中的 UNAVAILABLE 抖动，避免误报蓝牙关闭
- getWifiList 加 settled 保护，onStartSearch 加防重入
- userManagement 一键添加本人（仅加后台、不下发设备）

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

miniprogram/pages/userManagement/userManagement.ts

@@ -1,4 +1,4 @@
-import { get, post, del } from '../../utils/request/index'
+import { get, post, del, put } from '../../utils/request/index'
 import { leFuService } from '../../lefu/index'
 import type { SyncUserData } from '../../lefu/index'
 import { calcAge } from '../../utils/idCard/index'
@@ -72,6 +72,10 @@ const markSynced = (data: { sn: string; list: string[] }) =>
 const deleteMember = (id: string) =>
     del('weighingScale/v6/del/user', { id }, { loading: false })
 
+/** 添加设备成员（本人） */
+const addSelfUser = (data: Record<string, any>) =>
+    put('weighingScale/v6/edit/user', data)
+
 /** equipment 页传入的目标设备 */
 let targetDevice: { sn: string; deviceId: string; name: string; connected: boolean; connectDeviceInfo: string } | null = null
 
@@ -413,9 +417,36 @@ Page({
         })
     },
 
-    /** 一键添加本人 */
+    /** 一键添加本人：仅调接口把当前登录用户添加为设备成员，不下发设备 */
     onTapAddSelf() {
-        // 一键添加本人（待接入）
+        const userInfo = wx.getStorageSync('userInfo') as Record<string, any> | null
+        if (!userInfo?.userId) {
+            wx.showToast({ title: '请先完善个人信息', icon: 'none' })
+            return
+        }
+        const sn = targetDevice?.sn
+        if (!sn) return
+
+        addSelfUser({
+            dataType: 0,
+            parentUserId: userInfo.userId,
+            sn,
+            scaleDeviceId: sn,
+            realname: userInfo.realname ?? '',
+            idCard: userInfo.idCard || null,
+            sex: userInfo.sex ?? 0,
+            birthday: userInfo.birthday ?? '',
+            height: userInfo.height ?? 0,
+            weight: userInfo.weight ?? 0,
+            mode: getApp<IAppOption>().globalData.operationsEngineer ? 'ops' : 'normal',
+        })
+            .then(() => {
+                wx.showToast({ title: '添加成功', icon: 'success' })
+                this._loadMembers()
+            })
+            .catch(() => {
+                wx.showToast({ title: '添加失败，请重试', icon: 'none' })
+            })
     },
 
     /** 添加新用户 */