New dataverse-mcp plugin with mcp-setup command

[lupritz]

Pull Request Checklist

• I have read and followed the CONTRIBUTING.md guidelines.
• My contribution adds a new instruction, prompt, agent, or skill file in the correct directory.
• The file follows the required naming convention.
• The content is clearly structured and follows the example format.
• I have tested my instructions, prompt, agent, or skill with GitHub Copilot.
• I have run npm start and verified that README.md is up to date.

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Description

Adds a new dataverse-mcp plugin with a singular command: mcp-setup

This command guides the user through the process of setting up their MCP server for github copilot, lowering the barrier of entry by reducing the need to read online documentation and increasing discoverability. It optionally allows the user to query dataverse for their list of available orgs, making it even easier to set up.

The instructions for setting up the MCP server for copilot are fairly straightforward, so this is a relatively simple command. Other applications like claude CLI require some more complex setup, so this command might be made more elaborate in the future, but this is the first draft that works for copilot only.

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Type of Contribution

• New instruction file.
• New prompt file.
• New agent file.
• New plugin.
• New skill file.
• Update to existing instruction, prompt, agent, plugin, or skill.
• Other (please specify):

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Additional Notes

No additional notes

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By submitting this pull request, I confirm that my contribution abides by the Code of Conduct and will be licensed under the MIT License.