找不到gen_newproject.py文件

### 联系方式

limingmorning@163.com

### 您发现了什么问题

当我创建自己的应用时，我运行`aos create project -b developerkit -d dk.dk_gui my_time`找不到gen_newproject.py文件
运行环境: window aos-cube
SDK版本: v2.1.0

### 分支

master (Default)

### 请选择您发现此问题的解决方案名称

_No response_

### 日志
C:\AliOS-Things_dk>aos create project -b developerkit -d dk.dk_gui my_time
[AliOS-Things] ERROR: No C:\AliOS-Things_dk\build\scripts\gen_newproject.py found for current release!
---

C:\AliOS-Things_dk>

Start with the `aos create project -b developerkit -d dk.dk_gui my_time` entry point and inspect whether `build/scripts/gen_newproject.py` exists or is expected for the v2.1.0 release. Reproduce the command on Windows with the reported environment, then ensure project creation no longer reports the missing-script error.

Written by the indexing model from the issue text.