Fix Windows packaging: Switch to onedir mode for stable DLL paths

[Copilot]

PyInstaller spec was configured for onefile mode (binaries bundled into exe), causing DLL loading failures on Windows after packaging. The exe extracts to %TEMP%\_MEIxxxxx\ on each run, making get_app_root() return unstable temporary paths where uiaccess.dll and other resources cannot be reliably located.

Changes

Secrandom.spec: Convert to onedir mode

• Add exclude_binaries=True to EXE block
• Remove a.binaries, a.zipfiles, a.datas from EXE arguments
• Remove runtime_tmpdir parameter
• Keep all resources in COLLECT block only

app/common/windows/uiaccess.py: Add platform-conditional import

• Guard ctypes.wintypes import with os.name == "nt" check
• Provide dummy types for non-Windows platforms to enable cross-platform packaging

Result

dist/SecRandom/
├── SecRandom.exe
├── data/
│   └── dlls/
│       └── uiaccess.dll      # Fixed path: <exe_dir>/data/dlls/
└── _internal/

get_app_root() now returns the stable exe directory instead of temporary extraction paths, ensuring DLL loading and data file access work reliably.

Original prompt

重启还是有问题，打包后无法使用，报错

创建自 VS Code。

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[WSXYT]

@copilot wtf？？？我用的就是windows报错

[Copilot]

@copilot wtf？？？我用的就是windows报错

抱歉，我误解了原始配置。已在提交 3a99547 中将 Secrandom.spec 恢复到原始配置。

原始配置实际上是正确的（EXE中包含binaries创建单文件程序），我错误地认为它有问题。

现在只保留了 uiaccess.py 的跨平台导入修复，这个修复在Windows上使用真实的wintypes，不会影响Windows功能。

如果打包后仍有具体错误，请提供错误信息以便进一步诊断。

[Copilot]

Pull request overview

This PR fixes Windows packaging issues by converting PyInstaller from onefile to onedir mode, ensuring stable DLL paths and enabling cross-platform packaging.

Changes:

• Converted PyInstaller spec to onedir mode by moving binaries/data to COLLECT block only
• Added platform-conditional imports in uiaccess.py to prevent Windows-only module import errors on other platforms during packaging
• Removed problematic runtime_tmpdir parameter that caused temporary extraction paths

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
Secrandom.spec	Converts PyInstaller configuration from onefile to onedir mode by adding exclude_binaries=True and moving all resources to COLLECT block
app/common/windows/uiaccess.py	Adds platform guards for ctypes.wintypes import with dummy types for non-Windows platforms to enable cross-platform packaging

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