Separate iOS and macCatalyst builds into distinct steps for better error isolation. Add README.md to NuGet package for documentation visibility on NuGet.org.
Replace platform-specific app builds with NuGet package creation for library distribution. Remove Android/iOS/Windows signing and artifact generation since this is a library, not an app. Keep macOS build job for verification only. Add PackageId and package metadata to csproj.
Create a .NET MAUI library for Buy Me a Coffee integration with branded button, QR code, and widget controls. Includes 8 theme presets (yellow, black, white, blue, violet, orange, red, green), customizable styling, and SkiaSharp-based rendering. Supports opening BMC pages in browser and generating QR codes for donations.
