This commit introduces a comprehensive testing and continuous integration (CI) setup for the project.

Key changes include:

• Added a GitHub Actions workflow to automate testing on pushes and pull requests.
• Fixed a large number of failing and broken tests in the existing test suite.
• Added new, comprehensive tests for the TradingRule class, increasing its test coverage to 100%.
• Updated the tests.sh script to run all tests and generate a code coverage report.
• Added pytest and pytest-cov to the project dependencies.
• Added a .gitignore file to exclude generated files from version control.
• Included minor bug fixes in the web server and logging helper to improve robustness.