Changed default log level to error

[Michaelzag]

Motivation and Context

I help support Roo Code, a fork of cline.
There have had many users asking why they cant see the tool output in the MCP server tool window after creating a fastMCP server.
I think the default logging should be set to Error, if the user wants to see the INFO level, they can specify it. As a default, it's confusing a lot of people.

How Has This Been Tested?

It's a simple default value change.

Breaking Changes

Nope.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update

Checklist

• I have read the MCP Documentation
• My code follows the repository's style guidelines
• New and existing tests pass locally
• I have added appropriate error handling
• I have added or updated documentation as needed

Additional context