Add comprehensive tests for mcp_oauth_lib modules (#2)

Merge pull request #1 from onimsha/improve-test-coverage

Add comprehensive tests for main.py and schemas.py modules

Update coverage thresholds to realistic levels

Fix CI checks by excluding OAuth lib from linting and coverage

Fix ruff and formatting issues for CI

Improve test coverage with comprehensive test fixes and additions

Add GitHub workflows for CI and PR coverage analysis

Fix test suite implementation issues and improve coverage

Add comprehensive test suite for 90% code coverage

Update README to open-source standards and add pre-commit hooks

First commit

Initial commit