feat: adding changes in package.json and server.json for publication in mcp registry

[rubenbaraut]

This pull request updates the MCP server metadata and configuration files to align with the latest MCP schema, improve clarity, and support multiple package and remote deployment options. The changes modernize the server.json structure, add new package definitions, and enhance remote connectivity options.

Metadata and Schema Updates:

• Updated server.json to use the latest MCP schema, added top-level metadata fields ($schema, name, description, repository, version), and improved overall structure for better compliance and clarity.
• Added the mcpName field to package.json for clearer MCP identification.

Package and Deployment Enhancements:

• Expanded the packages array in server.json to define multiple deployment options, including npm and two MCPB package variants (minimal and full), each with explicit transport and environment variable requirements.

Remote Connectivity Improvements:

• Introduced a remotes section in server.json to specify multiple streamable HTTP endpoints (US and EU, minimal and full), each with required authorization headers for secure access.

[garciasdos]

@akinard-postman could you review server.json description properties?

[akinard-postman]

Left some suggestions, and should be good to merge after. 👍