移动云重装debian 11，12，13 失败

原来的系统 (Original system):
windows 10
要安装的系统 (System to be installed):
debian 13
遇到的问题 (Issue):
WebSocket断开后就没反应了，移动云公众版也没有紧急通道，无法查看详情。

[cmcc_debian13.txt](https://github.com/user-attachments/files/26658123/cmcc_debian13.txt)

Start by reading the attached cmcc_debian13.txt log and tracing the reinstall flow used for Mobile Cloud. Reproduce the Debian 13 reinstall from Windows 10 while observing the WebSocket disconnect, then verify that the process continues or reports a usable failure instead of becoming unresponsive.

Written by the indexing model from the issue text.