CLAP-417 Fix: 작업 보드 상태 변경 오류 수정

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- 관련: #543

Author: joowojr

src/main/java/clap/server/application/service/task/UpdateTaskOrderAndStstusService.java

@@ -106,7 +106,7 @@ private Task handleSingleTask(Long processorId, TaskStatus targetStatus, Task ta
             targetTask.updateTaskStatus(targetStatus);
             updatedTask = taskService.upsert(targetTask);
         } else if (prevTask == null) {
-            long newOrder = taskOrderCalculationPolicy.calculateOrderForBottom(null, nextTask);
+            long newOrder = taskOrderCalculationPolicy.calculateOrderForTop(null, nextTask);
             updatedTask = updateNewTaskOrderAndStatus(targetStatus, targetTask, newOrder);
         } else if (nextTask == null) {
             long newOrder = taskOrderCalculationPolicy.calculateOrderForBottom(prevTask, null);