refactor: rename main class to AppApplication to match V1 naming

- V1 main class: cn.cloudwalk.elevator.AppApplication
- V2 was ElevatorApplication, now aligned to AppApplication
- Also update reference in test script

maven-cw-elevator-application/releases/cw-elevator-application-V2.0.13.20260505/stop.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# 停止与本目录 cw-elevator-application-2.0.13.jar 对应的 Java 进程（仅匹配命令行中含该 JAR 名的进程）。
+set -euo pipefail
+JAR="cw-elevator-application-2.0.13.jar"
+# shellcheck disable=SC2009
+pid=$(ps -ef | grep '[j]ava' | grep "$JAR" | awk '{print $2}' || true)
+if [[ -n "${pid}" ]]; then
+  kill -9 $pid
+fi