FEATURE: Platform packages - Windows and macOS

[BenGWeeks]

Create proper installation packages for Windows and macOS platforms.

Description

Package Nod.ie for easy installation on Windows and macOS, beyond the current Linux focus.

Requirements

• Windows installer (.exe or .msi)
• macOS app bundle (.app) and DMG
• Code signing for both platforms
• Auto-update system
• Platform-specific optimizations

Platform-specific considerations

Windows

• Handle different audio APIs
• System tray integration
• Windows Defender exceptions

macOS

• Notarization requirements
• Accessibility permissions for global hotkeys
• macOS audio permissions

From TODO.md item #21