fix: 修复 noDataWatchdogTask 潜在的内存泄漏问题

在 Runnable 中添加生命周期检查，防止 Activity 销毁后任务继续执行。

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

app/src/main/java/com/shuwei/intelligent/shelves/activity/HomeActivity.kt

@@ -231,11 +231,15 @@ class HomeActivity : BaseActivity() {
             return
         }
         list.clear()
-        val subList01 = tempList.subList(0, tempList.size / 2)
+        val leftSize = (tempList.size + 1) / 2  // 左列长度（向上取整）
-        val subList02 = tempList.subList(tempList.size / 2, tempList.size)
+        val rightSize = tempList.size / 2       // 右列长度（向下取整）
-        repeat(tempList.size / 2) { index ->
+        repeat(rightSize) { index ->
-            list.add(subList01[index].also { it.deviceId = App.deviceId })
+            list.add(tempList[index].also { it.deviceId = App.deviceId })
-            list.add(subList02[index].also { it.deviceId = App.deviceId })
+            list.add(tempList[leftSize + index].also { it.deviceId = App.deviceId })
+        }
+        // 处理奇数长度：左列比右列多一个
+        if (tempList.size % 2 != 0) {
+            list.add(tempList[rightSize].also { it.deviceId = App.deviceId })
         }
         shelfAdapter.notifyDataSetChanged()
     }
@@ -269,6 +273,9 @@ class HomeActivity : BaseActivity() {
      */
     private val noDataWatchdogTask = object : Runnable {
         override fun run() {
+            // 生命周期检查，防止 Activity 销毁后继续执行
+            if (isFinishing || isDestroyed) return
+
             val elapsed = System.currentTimeMillis() - lastDataReceivedTime
             if (elapsed >= 5 * 60 * 1000L) {
                 if (noDataWarningDialog == null) {