Implement configuration function to customize MCP server

[KoolADE85]

This PR adds a function to configure the MCP server behaviour:

Rather than add a growing list of constructor args around the MCP server, this PR implements a single configure_mcp_server() function that allows users to toggle various parts of the server with arguments:

def configure_mcp_server(
    *,
    include_layout: bool = True,
    include_callbacks: bool = True,
    include_clientside_callbacks: bool = True,
    include_pages: bool = True,
    expose_callback_docstrings: bool = False,
) -> None:

The existing mcp_expose_docstrings constructor arg has been removed and replaced by this function.

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud