👑[Enhancement] 安装程序在安装时检测到已安装的微软商店版本时提示用户

有些人可能在不知情的情况下同时安装两个watt toolkit,如果在安装或者程序启动时提示用户（可以要求用户卸载其中一个版本）就可以避免出现此问题

Start by tracing the application's installer and startup paths to find where an installed Microsoft Store version could be detected. Confirm how the two Watt Toolkit versions are distinguished, then make the relevant flow prompt users to keep one version and offer to uninstall the other; done means the prompt appears during installation or launch when both versions are present.

Written by the indexing model from the issue text.