feat(userManagement): 接入用户同步到设备，恢复清空设备用户能力

- service 恢复 clearDeviceMembers/syncMembersToDevice，操作中断开立即失败
- syncMembersToDevice 只负责逐个下发，参数由业务层组装
- _doReconnect 增加蓝牙不可用判断
- userManagement 接入真实同步（连接状态实时同步 + 进度弹框）
- equipment 页增加用户管理入口

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

miniprogram/pages/userManagement/userManagement.ts

@@ -1,11 +1,19 @@
-// pages/userManagement/userManagement.ts
+import { leFuService } from '../../lefu/index'
+import type { SyncUserData } from '../../lefu/index'
+
+/** 连接状态订阅句柄 */
+let unsubDeviceConnect: (() => void) | null = null
+let unsubDisconnected: (() => void) | null = null
+/** 同步完成关闭弹框定时器 */
+let syncCloseTimer: number | null = null
+
 Page({
     data: {
         device: {
-            name: '家庭蓝牙体脂秤 S1',
-            connected: true,
-            model: 'BS-A100',
-            serial: 'BL2024B00321'
+            name: '智能体重秤',
+            connected: false,
+            model: '',
+            serial: ''
         },
         memberCount: 5,
         hasData: true,
@@ -38,12 +46,110 @@ Page({
         syncStatus: ''
     },
 
+    onLoad() {
+        this._updateDeviceInfo()
+        this._subscribeDeviceState()
+    },
+
+    onUnload() {
+        unsubDeviceConnect?.()
+        unsubDisconnected?.()
+        unsubDeviceConnect = null
+        unsubDisconnected = null
+        if (syncCloseTimer !== null) { clearTimeout(syncCloseTimer); syncCloseTimer = null }
+    },
+
+    /** 从 service 读取设备信息 + 连接状态 */
+    _updateDeviceInfo() {
+        const info = leFuService.deviceInfo
+        this.setData({
+            'device.name': info?.modelNumber || '智能体重秤',
+            'device.model': info?.modelNumber || '',
+            'device.serial': info?.serialNumber || '',
+            'device.connected': leFuService.isConnected,
+        })
+    },
+
+    /** 订阅连接状态，实时同步设备卡 */
+    _subscribeDeviceState() {
+        unsubDeviceConnect?.()
+        unsubDisconnected?.()
+        unsubDeviceConnect = leFuService.onDeviceConnect(() => {
+            this._updateDeviceInfo()
+        })
+        unsubDisconnected = leFuService.onDisconnected(() => {
+            this.setData({ 'device.connected': false })
+        })
+    },
+
+    /** 校验设备连接状态：未连接则同步状态 + 提示 */
+    _ensureConnected(): boolean {
+        if (leFuService.isConnected) return true
+        this.setData({ 'device.connected': false })
+        wx.showToast({ title: '请先连接设备', icon: 'none' })
+        return false
+    },
+
     /** 同步用户至设备 */
     onTapSync() {
-        this.setData({ syncShow: true, syncPercent: 32, syncStatus: '正在同步信息，请勿离开...' })
-        setTimeout(() => {
-            this.setData({ syncPercent: 100, syncStatus: '同步完成' })
-        }, 2000)
+        if (!this._ensureConnected()) return
+
+        // 组装所有用户（self 第一个，作为主用户），性别：男=1 女=0
+        const allUsers = [
+            {
+                id: 'self', name: this.data.self.name,
+                gender: this.data.self.gender === '男' ? 1 : 0,
+                age: this.data.self.age, height: this.data.self.height,
+            },
+            ...this.data.groups.flatMap(g => g.members.map(m => ({
+                id: String(m.id), name: m.name,
+                gender: m.gender === '男' ? 1 : 0, age: m.age, height: m.height,
+            }))),
+        ]
+        const mainUser = allUsers[0]
+        // 组装下发参数（SyncUserData），第一个为主用户（memberID 为空）
+        const syncDataList: SyncUserData[] = allUsers.map((user, index) => ({
+            userID: mainUser.id,
+            userName: user.name,
+            memberID: index === 0 ? '' : user.id,
+            age: user.age,
+            gender: user.gender,
+            height: user.height,
+            isAthleteMode: 0,
+            deviceHeaderIndex: index,
+            currentWeight: '',
+            targetWeight: '',
+            idealWeight: '',
+            recentData: [],
+        }))
+
+        // 阶段1：清空设备用户，进度 0% → 100%
+        this.setData({ syncShow: true, syncPercent: 0, syncStatus: '正在清空设备用户...' })
+        leFuService.clearDeviceMembers()
+            .then(() => {
+                this.setData({ syncPercent: 100, syncStatus: '清空完成' })
+                // 阶段2：下发用户，进度从 0% 重新开始
+                this.setData({ syncPercent: 0, syncStatus: '正在同步信息，请勿离开...' })
+                return leFuService.syncMembersToDevice(syncDataList, (current, total) => {
+                    this.setData({
+                        syncPercent: Math.round((current / total) * 100),
+                        syncStatus: `正在同步 ${current}/${total}...`,
+                    })
+                })
+            })
+            .then(() => {
+                this.setData({ syncPercent: 100, syncStatus: '同步完成' })
+                wx.showToast({ title: '用户同步成功', icon: 'success' })
+                if (syncCloseTimer !== null) { clearTimeout(syncCloseTimer); syncCloseTimer = null }
+                syncCloseTimer = setTimeout(() => {
+                    syncCloseTimer = null
+                    this.setData({ syncShow: false })
+                }, 1000)
+            })
+            .catch((err: Error) => {
+                this.setData({ syncShow: false })
+                wx.showToast({ title: err.message || '同步失败，请重试', icon: 'none' })
+            })
     },
 
     /** 添加用户 */