feat: add new api clients and improve docs

.gitignore

@@ -41,10 +41,19 @@ lib/
 
 .DS_Store
 /.vscode/
+.cursor/
 
 doc
 out
 .idea
 
 /dist/
-.tmp.*
+.tmp.*
+
+.github/skills/
+
+docs/
+*_REVIEW.md
+
+swagger-spec.json
+swagger.*

.npmignore

@@ -1,13 +1,10 @@
-documentation
-nyc_output
-coverage
-examples
 src
 test
 types
+examples
+coverage
 .DS_Store
-website
-documentation
+
 # System and IDE files
 Thumbs.db
 .vscode/
@@ -28,3 +25,6 @@ yarn.lock
 .prettierrc*
 .babelrc*
 .editorconfig
+eslint.config.js
+jsconfig.json
+.c8rc.json

CONTRIBUTING.md

@@ -0,0 +1,75 @@
+# Contributing to Checkout.com Node.js SDK
+
+Thank you for your interest in contributing to the Checkout.com Node.js SDK! We welcome contributions from the community.
+
+## How to Contribute
+
+1. **Fork the repository**
+2. **Create a feature branch** (`git checkout -b feature/amazing-feature`)
+3. **Make your changes**
+4. **Add tests for your changes** - Ensure new functionality is covered by tests
+5. **Run tests** and ensure coverage remains high (`npm test`)
+6. **Commit your changes** using conventional commit format (`git commit -m 'feat: add amazing feature'`)
+7. **Push to the branch** (`git push origin feature/amazing-feature`)
+8. **Open a Pull Request**
+
+## Development Setup
+
+```bash
+# Clone the repository
+git clone https://github.com/checkout/checkout-sdk-node.git
+cd checkout-sdk-node
+
+# Install dependencies
+npm install
+
+# Run tests
+npm test
+
+# Run tests in watch mode
+npm run test:watch
+
+# Build the project
+npm run build
+
+# Run linter
+npm run lint
+```
+
+## Code Standards
+
+- Follow the existing code style
+- Use ES2022+ features where appropriate
+- Write clear, descriptive commit messages following [Conventional Commits](https://www.conventionalcommits.org/)
+- Ensure all tests pass before submitting a PR
+- Maintain or improve code coverage (currently 97.95%)
+- Update TypeScript definitions in `types/dist/` for any API changes
+
+## Testing
+
+- All new features must include tests
+- Bug fixes should include a test that reproduces the issue
+- Run `npm test` to execute the full test suite
+- Ensure coverage reports show your changes are tested
+
+## Pull Request Process
+
+1. Update the README.md with details of changes if applicable
+2. Update the TypeScript type definitions if you modify the API
+3. The PR will be merged once you have approval from a maintainer
+4. Ensure your code passes all CI checks
+
+## Reporting Issues
+
+- Use the GitHub issue tracker
+- Provide a clear description of the issue
+- Include code samples or test cases when possible
+- Specify the SDK version and Node.js version you're using
+
+## Questions?
+
+If you have questions about contributing, feel free to:
+- Open a discussion on GitHub
+- Contact us at support@checkout.com
+
+Thank you for contributing! 🎉

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021 Checkout.com
+Copyright (c) 2021-2026 Checkout.com
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal