C# quickstarts

[aaronpowell]

Motivation and Context

Adding C# quickstarts (client and server) for the docs so that people can follow along using C# and the C# SDK.

These are leveraging the existing Python/Node.js docs format where possible.

There is a dependency on modelcontextprotocol/csharp-sdk#104 being merged to the C# SDK repo which contains the quickstart code.

How Has This Been Tested?

Breaking Changes

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context

[dsp-ant]

I have no clue about .NET but it looks roughly right :p