fix: TaskDetailFragment 使用新字段名（displayName/positionText/pointText/sendTime）

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/src/main/java/com/xiaoqu/watch/ui/task/TaskDetailFragment.kt

@@ -83,11 +83,11 @@ class TaskDetailFragment : BaseFragment<FragmentTaskDetailBinding>() {
 
     /** 展示任务信息 */
     private fun displayDetail(detail: TaskDetail) {
-        binding.tvTaskName.text = detail.taskName
+        binding.tvTaskName.text = detail.displayName
         binding.tvTaskNo.text = detail.no
-        binding.tvPosition.text = detail.positionName.ifEmpty { "无" }
-        binding.tvPoints.text = if (detail.point > 0) "+${detail.point}" else "0"
-        binding.tvTime.text = detail.beginTime
+        binding.tvPosition.text = detail.positionText.ifEmpty { "无" }
+        binding.tvPoints.text = detail.pointText
+        binding.tvTime.text = detail.sendTime
 
         // 状态标签
         when (detail.status) {