Rmove license check

### Use Case

Hi, any reason you would actually need license validation for something that runs locally in the engineer's coputer?

This is not practical, if a company has 50 engineers, now someone has to deal with distributing a key to multiple people (and offboarding that key in the future)

### Proposed Solution

Remove license check, this is usually something that has to be part of hosrting the catalog as a platform, not in the client side.

### Implementation Notes

_No response_

### Community Notes

_No response_

The issue names no files, entry points, or tests. Start by locating the license-validation flow in the TypeScript MCP server and trace how local users receive and use keys; done means local operation no longer requires distributing or revoking a license key, with affected tests updated if they exist.

Written by the indexing model from the issue text.