Add Uno Platform project for cross-platform support (macOS, Linux, Windows)

[Copilot]

Adds an Uno Platform project to enable the Bookmarkly app to run on macOS, Linux, and Windows via Skia rendering, alongside the existing Windows-only WinUI app.

Changes

• New project Bookmarkly.Uno - Uno Platform app targeting net10.0-desktop

  • Skia-based renderer for cross-platform UI consistency
  • Platform hosts: macOS (AppKit+Metal), Linux (X11/Framebuffer), Windows (Win32)
  • MainPage mirrors existing Windows app functionality (ListView with data binding)

• Solution integration

  • Added to Bookmarkly.slnx under /Uno/ folder
  • Added global.json for Uno.Sdk 6.4.42

Usage

dotnet build Bookmarkly.Uno/Bookmarkly.Uno.csproj
dotnet run --project Bookmarkly.Uno/Bookmarkly.Uno.csproj

Note

Project references to shared ViewModels/Abstractions are commented out pending resolution of pre-existing build issues in Bookmarkly.Entities.Abstractions (missing using System for DateTimeOffset).

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• crl.godaddy.com
  • Triggering command: /usr/bin/dotnet dotnet restore Bookmarkly.Uno/Bookmarkly.Uno.csproj (dns block)
• ocsp.godaddy.com
  • Triggering command: /usr/bin/dotnet dotnet restore Bookmarkly.Uno/Bookmarkly.Uno.csproj (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Given the Views and App alone is platform specific targetting Windows, create Uno equivalent? Which targets macos? Or multi target for Views alone with host app being a uno project?

---

✨ Let Copilot coding agent set things up for you — coding agent works faster and does higher quality work when set up for your repo.