- Support .json and .log file formats for load from disk
- Better suited for log filtering expression prototyping
- Remove .txt as it's not commonly used for JSON data
- Add 'Load from Disk' button to toolbar in middle section
- Implement file selection dialog with JSON validation
- Support .json and .txt file formats
- Display error messages for invalid JSON files
- Update README to document the new file upload capability
- Add styling for the new upload button
- Feature matches requirement in copilot-instructions.md
- React-based web application for testing JMESPath expressions
- macOS-first containerization with Apple container command
- Bootstrap UI with real-time evaluation
- GitHub Actions CI/CD pipeline
- Docker fallback support
- Comprehensive documentation and development scripts
