refactor: 优化货架列表转换逻辑并支持奇数长度处理

- 移除 subList 创建,直接通过索引访问元素
- 修复奇数长度列表的处理逻辑
- 保持单次循环,提升性能

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 subList02 = tempList.subList(tempList.size / 2, tempList.size)
-        repeat(tempList.size / 2) { index ->
-            list.add(subList01[index].also { it.deviceId = App.deviceId })
-            list.add(subList02[index].also { it.deviceId = App.deviceId })
+        val leftSize = (tempList.size + 1) / 2  // 左列长度（向上取整）
+        val rightSize = tempList.size / 2       // 右列长度（向下取整）
+        repeat(rightSize) { index ->
+            list.add(tempList[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()
     }