Windows desktop app

[AnthonyRonning]

Build and release Maple for Windows.

Currently Maple desktop is available for macOS and Linux only. Windows is a popular request.

This would enable Windows users to use features that require the desktop app, such as:

• Document upload (PDF, TXT, MD)
• Voice recording

Requested via user feedback.

[marksftw]

Azure setup is fully complete. The signing infrastructure is ready. There are 6 new AZURE* secrets in the account ready for use.

AI suggests these are the remaining dev steps:

• Tauri config for Windows (NSIS installer, WebView2 embedBootstrapper, signCommand)
• build.rs Windows manifest (DPI awareness, asInvoker execution level)
• Windows icon generation (.ico with multiple sizes)
• GitHub Actions workflow for signed Windows builds
• Auto-updater latest.json Windows platform entry
• Platform detection updates if needed