👑[Enhancement] Windows10环境下界面UI尺寸蹩脚

### 🥰 需求描述(Description)

在Windows10环境下，打开软件后尺寸很奇怪，看似是最大化其实不是最大化，每次鼠标移到屏幕最右上角想关闭软件时，都会错误关掉其他窗口。

### 🧐 解决方案(Solution)

建议缩小初始化尺寸（例如800*800），在设置中加入初始化窗口尺寸选择项

### 🚑 其他信息(Other Information)

No source files, tests, or entry points are named. Reproduce the window sizing and close-button behavior on Windows 10, then locate the window initialization and settings code. Done means the initial size is appropriate, the top-right close target works correctly, and a window-size choice is available in settings.

Written by the indexing model from the issue text.