Fix license metadata mismatch: use PackageLicenseFile for custom Ms-PL/Modified license

[Copilot]

The .csproj declared <PackageLicenseExpression>MIT</PackageLicenseExpression>, but the actual LICENSE file is a modified Ms-PL with a custom "Special Usage Limitation" clause (Section 4) — neither MIT nor expressible as a standard SPDX identifier.

Changes

• MouseJiggler/MouseJiggler.csproj
  • Replace PackageLicenseExpression (SPDX MIT) with PackageLicenseFile referencing the actual LICENSE file
  • Add LICENSE to the NuGet pack ItemGroup alongside README.md

<!-- Before -->
<PackageLicenseExpression>MIT</PackageLicenseExpression>

<!-- After -->
<PackageLicenseFile>LICENSE</PackageLicenseFile>
...
<None Include="..\LICENSE">
  <Pack>True</Pack>
  <PackagePath>\</PackagePath>
</None>

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[Copilot]

Pull request overview

Updates NuGet package metadata so the published package points to the repository’s actual (non-SPDX) license text instead of incorrectly claiming an MIT SPDX expression.

Changes:

• Replace PackageLicenseExpression with PackageLicenseFile in the project’s NuGet metadata.
• Include the repository root LICENSE file in the packed NuGet contents (alongside the already-packed README.md).

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.