feat: add CI workflow and unit tests for utility functions

[ndenny]

This pull request introduces a new continuous integration (CI) workflow, refactors utility functions into a separate module, and adds comprehensive unit tests for these utilities. Additionally, it updates project configuration to support testing and workspace organization.

CI and Automation:

• Adds a new GitHub Actions workflow in .github/workflows/ci.yml to automate testing and building on pull requests and pushes to main. This ensures code quality and build integrity on every change.

Codebase Refactoring and Testing:

• Refactors parseBoolean and summarizeDocument utility functions out of src/index.js into a new src/utils.js module, cleaning up the main file and improving code organization. [1] [2] [3] [4]
• Adds a new test script to package.json and implements thorough unit tests for the utilities in test/utils.test.js, improving reliability and maintainability. [1] [2]

Project Structure and Workspace:

• Updates the VS Code workspace file to include an additional folder, supporting multi-repo or multi-project workflows.

Exports and API Improvements:

• Ensures all relevant functions are exported from src/openapi.js, improving modularity and testability.