MCP Server improvments

[flyrain]

Here are a list of improvement we could do for MCP server:

1. Github CI/CD for the tests
2. Publish it nightly to PyPi, and release it when it's ready, including License and notice. Having an offline discussion with @HonahX , due to two different repos between CLI and MCP, we will need to create two different projects in PyPI repo.
3. Documentation in the Polaris site.
4. Add integration test, or benchmark
5. Better context, this is a big projects including adding more examples, rest spec, Polaris doc, etc.
6. Realm Support
7. Configure file support

Related discussion: #39 (comment)

cc @adam-christian-software

[adam-christian-software]

We will probably have to pull all of this apart into different issues eventually, but this is good for initial tracking! :)