Include package license and readme in NuGet outputs

[Copilot]

The v2.1.1-develop.54 release failed during dotnet pack because package metadata referenced LICENSE, but the file was not included in the generated NuGet package.

• Package metadata
  • Adds root LICENSE and README.md to all packed projects from Directory.Build.props.
  • Keeps the shared package metadata centralized for both Terminal.Gui.Text and Terminal.Gui.Editor.

<ItemGroup>
  <None Include="$(MSBuildThisFileDirectory)LICENSE" Pack="true" PackagePath="" />
  <None Include="$(MSBuildThisFileDirectory)README.md" Pack="true" PackagePath="" />
</ItemGroup>

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:

• www.jetbrains.com
  • Triggering command: /usr/share/dotnet/dotnet /usr/share/dotnet/dotnet exec --runtimeconfig /home/REDACTED/.nuget/packages/jetbrains.resharper.globaltools/2025.2.4/tools/netcoreapp3.1/any/cleanupcode.unix.runtimeconfig.json /home/REDACTED/.nuget/packages/jetbrains.resharper.globaltools/2025.2.4/tools/netcoreapp3.1/any/cleanupcode.exe Terminal.Gui.Text.slnx --profile=Built-in: Full Cleanup --no-build --exclude=third_party/**/* (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)

[tig]

@copilot do you know this is the cause for sure or are you guessing. This is the 4th of these failures I've assigned to you and you continue to not fix the problem.

[Copilot]

@copilot do you know this is the cause for sure or are you guessing. This is the 4th of these failures I've assigned to you and you continue to not fix the problem.

This one is confirmed, not a guess. The failed run’s pack-and-publish job failed specifically at Pack Terminal.Gui.Text with NU5030: The license file 'LICENSE' does not exist in the package. I reproduced that same dotnet pack src/Terminal.Gui.Text -c Release -p:Version=2.1.1-develop.54 failure locally before the change, and after commit 1e2b586 the same pack command succeeds. No UI changes.