[AI Generated]: feat(*): 新增 autoConnect 自动重连机制、OTA 断连兜底触发，修复 diff 为零时颜色与箭头展示异常

miniprogram/pages/equipment/equipment.ts

@@ -93,49 +93,19 @@ Page({
             })
     },
 
-    /** 检查缓存设备：已连接则直接标记，未连接则扫描匹配 deviceId 后自动连接 */
+    /** 检查缓存设备：已连接则直接标记，未连接则调 autoConnect 扫描重连 */
     _checkAndAutoConnect() {
-        const cachedRaw = wx.getStorageSync('connectDeviceInfo') as RawDevice | null
-        const targetDeviceId = cachedRaw?.deviceId as string | undefined
-        if (!targetDeviceId) return
-
         // 已连接且 deviceInfo 就绪，直接标记列表
         if (lefuService.isConnected && lefuService.deviceInfo?.serialNumber) {
             this._markConnected(lefuService.deviceInfo.serialNumber as string)
             return
         }
 
-        let scanTimer: number | null = null
-
-        wx.showLoading({ title: '连接中...', mask: true })
-        wx.openBluetoothAdapter({
-            success: () => {
-                scanTimer = setTimeout(() => {
-                    lefuService.stopScan()
-                    wx.hideLoading()
-                }, 15000)
-
-                lefuService.onDevicesList((devices) => {
-                    const matched = devices.find(d => d.raw.deviceId === targetDeviceId)
-                    if (!matched) return
-                    if (scanTimer !== null) { clearTimeout(scanTimer); scanTimer = null }
-                    lefuService.stopScan()
-                    lefuService.connect(matched.raw)
-                    lefuService.onDeviceConnect(() => {
-                        wx.hideLoading()
-                        wx.setStorageSync('connectDeviceInfo', matched.raw)
-                    })
-                    lefuService.onDeviceInfo((info) => {
-                        this._markConnected(info.serialNumber as string)
-                    })
-                })
-                lefuService.startScan()
-            },
-            fail: () => {
-                if (scanTimer !== null) { clearTimeout(scanTimer); scanTimer = null }
-                wx.hideLoading()
-            },
+        // 注册回调：连接成功后更新列表状态
+        lefuService.onDeviceInfo((info) => {
+            this._markConnected(info.serialNumber as string)
         })
+        lefuService.autoConnect()
     },
 
     /** 将 serialNumber 对应的列表项标记为已连接，其余置为未连接 */