Add README and icon to NuGet package

[Copilot]

The NuGet package was missing a README and icon, reducing discoverability and professionalism in the NuGet Gallery.

Changes

• Package metadata: Added PackageReadmeFile and PackageIcon properties to reference README.md and Icon.png
• Package contents: Configured both files to be included in the NuGet package via <None Include="..." Pack="true" PackagePath="\" />
• Icon asset: Created 64x64px placeholder icon (blue background with "RC" text)

Notes

The icon is a programmatically-generated placeholder since the original asset couldn't be downloaded. Replace Icon.png in the repository root with the intended design if needed.

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:

• github-production-user-asset-6210df.s3.amazonaws.com
  • Triggering command: /usr/bin/curl curl -L REDACTED -o /home/REDACTED/work/ReqStream/ReqStream/Icon.png (dns block)
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node /home/REDACTED/work/_temp/ghcca-node/node/bin/node --enable-source-maps /home/REDACTED/work/_temp/copilot-developer-action-main/dist/index.js (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

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This section details on the original issue you should resolve

<issue_title>[Feature]: NuGet Package Contents</issue_title>
<issue_description>### Problem Statement

The NuGet Package is missing a readme and icon

Proposed Solution

Ensure the README.md file is included in the NuGet package, and add the following Icon.png file.

Alternatives Considered

No response

Additional Context

No response

Priority

None

Contribution

• I would be willing to submit a PR for this feature

Code of Conduct

• I agree to follow this project's Code of Conduct</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [Feature]: NuGet Package Contents #35

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