Polymarket MCP Server

## Description Brief description of what this PR does. ## Type of Change - [ ] 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 not work as expected) - [ ] Documentation update - [ ] Code refactoring - [ ] Performance improvement - [ ] Test improvement ## Testing - [ ] I have tested this change locally - [ ] I have added tests that prove my fix is effective or that my feature works - [ ] New and existing unit tests pass locally with my changes ## Changeset - [ ] I have added a changeset for this change (run `pnpm changeset` to add one) ## Checklist - [ ] My code follows the style guidelines of this project - [ ] I have performed a self-review of my own code - [ ] I have commented my code, particularly in hard-to-understand areas - [ ] I have made corresponding changes to the documentation - [ ] My changes generate no new warnings