feat: add MCP support

[ryzizub]

Description

It could be useful to extend very_good_cli with support for Model Context Protocol (MCP)

With MCP integration, very_good_cli commands (e.g., create, analyze, test) could be exposed as structured endpoints. This would allow seamless use in AI-assisted developer environments (e.g., editors with MCP support).

Proposal:

• Define an MCP server interface for very_good_cli.
• Expose the most common commands (create, analyze, test, packages get) as MCP endpoints.

Requirements

• All CI/CD checks are passing.
• There is no drop in the test coverage percentage.

Additional Context

No response

[ryzizub]

This is heavily inspired by Dart MCP server
and Firebase MCP server
, which allow an agent to access Dart, Flutter, or Firebase commands more quickly and accurately, while also keeping interactions aligned with the latest CLI updates.

For example, an agent could generate a report of used licenses by running very_good packages check licenses. This is much easier than having the agent parse dependencies and construct commands manually.

Another example is project initialization: instead of us calling very_good create, the agent can prepare a new project on its own. This enables fast project generation that still adheres to VGV standards.