Add ownership verification for mcp registry

[awsjjzhou]

Summary

Changes

Add ownership verification for mcp registry. Following https://github.com/modelcontextprotocol/registry/blob/main/docs/modelcontextprotocol-io/quickstart.mdx

User experience

No change

Checklist

If your change doesn't seem to apply, please leave them unchecked.

• [ x] I have reviewed the contributing guidelines
• [x ] I have performed a self-review of this change
• [ x] Changes have been tested
• [ x] Changes are documented

Is this a breaking change? (Y/N)

• Yes
• [ x] No

Please add details about how this change was tested.

• Did integration tests succeed?
• If the feature is a new use case, is it necessary to add a new integration test case?

Acknowledgment

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.