* Update the model to handle new changes to schema based on https://github.com/modelcontextprotocol/registry/pull/33
* Made the import script a little simpler.
* Add a new updated seed file
* update template mcp.json file for publisher
Work in progress .
This commit adds the core registry service implementation with methods to:
- Retrieve all registry entries
- List entries with cursor-based pagination
- Fetch specific server details by ID
