chore(connectedDevice): 隐藏帮助文案与 deviceId 调试信息

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

miniprogram/pages/connectedDevice/connectedDevice.ts

@@ -39,6 +39,8 @@ let connectCleanup: {
 /** 一次性防重入标记 */
 let modalLocked = false
 let autoConnectTried = false
+/** 进入页面时是否已连接（返回时恢复被扫描打断的连接） */
+let enteredConnected = false
 
 Page({
     data: {
@@ -46,6 +48,10 @@ Page({
         deviceList: [] as DeviceItem[],
     },
 
+    onLoad() {
+        enteredConnected = leFuService.isConnected
+    },
+
     onShow() {
         // 从其他页面返回时同步连接状态
         if (leFuService.isConnected) {
@@ -67,6 +73,10 @@ Page({
         leFuService.stopScan()
         this._clearSubscriptions()
         this._clearConnectCleanup()
+        // 进入前已连接、扫描打断连接后返回：恢复原连接
+        if (enteredConnected) {
+            leFuService.autoConnect()
+        }
     },
 
     /** 点击「开始 / 重新搜索」 */

miniprogram/pages/connectedDevice/connectedDevice.wxml

@@ -24,10 +24,10 @@
 	</view>
 
 	<!-- 帮助文案 -->
-	<view class="help">
+	<!-- <view class="help">
 		<view class="help-text">找不到设备？</view>
 		<view class="help-link" bind:tap="onOpenHelp">检查附近设备权限</view>
-	</view>
+	</view> -->
 
 	<!-- 搜索结果模块:found / empty 时整体显示 -->
     <block wx:if="{{ status === 'found' || status === 'empty' }}">
@@ -76,7 +76,7 @@
                                     <view class="card-btn-primary" data-index="{{ index }}" catch:tap="onConnect">连接</view>
                                 </block>
                             </view>
-                            <view class="device-card-bottom">deviceId：{{ item.deviceId }}</view>
+                            <!-- <view class="device-card-bottom">deviceId：{{ item.deviceId }}</view> -->
                         </view>
                     </block>
                 </view>