Fix emoji rendering in MINGW64 terminals

[nightt5879]

Closes #7

Summary

• Configure Windows console input/output encoding to UTF-8 at CLI startup.
• Keep the encoding setup best-effort so unsupported console environments do not block startup.

Verification

• dotnet test (461 passed; existing CS8669 nullable warning in src/Cli/Commands/InitTemplates.Designer.cs)
• dotnet run --project src\FuseraftCli.csproj -- --version

[fuseraft]

This is good. Please remove the Windows-only guard and rename ConfigureWindowsConsoleEncoding to ConfigureConsoleEncoding. TrySetConsoleEncoding adds too much cognitive overhead.

Something like this would work nicely:

static void ConfigureConsoleEncoding()
{
    try { Console.OutputEncoding = Encoding.UTF8; }
    catch (Exception e) when (e is IOException or NotSupportedException or UnauthorizedAccessException) { }
  
    try { Console.InputEncoding = Encoding.UTF8; }
    catch (Exception e) when (e is IOException or NotSupportedException or UnauthorizedAccessException) { }
}

[nightt5879]

Addressed in baee77f: removed the Windows-only guard, renamed ConfigureWindowsConsoleEncoding to ConfigureConsoleEncoding, and inlined the guarded input/output UTF-8 encoding setters. Verified with dotnet test fuseraft.sln.

[fuseraft]

Thanks for contributing!