v0.1.1

feat(cli): introduce Yamlet CLI for headless API collection execution

- Added a new CLI tool to run Yamlet API collections, allowing execution in CI environments.
- Implemented command-line arguments for workspace path, environment file, globals override, and bail option.
- Enhanced request execution with support for capturing test results and handling assertions.
- Created a routing handler for simulating HTTP responses during tests.
- Added unit tests for collection runner and script test capturing functionality.
- Updated project structure to include a new core library for shared services.
- Introduced GitHub Actions workflow for publishing the CLI tool to NuGet.
- Enhanced UI with improved API response handling and loading states.