- Enhanced copilot instructions with detailed architecture overview
- Added comprehensive development workflow documentation
- Documented addon development patterns and key examples
- Added project-specific conventions and TypeScript structure
- Included common patterns for parser integration and buffer access
- Added critical implementation details for rendering and events
- Created unit test instructions file with addon testing rules
- Specified preferences for assertions and self-documenting tests
- Add comprehensive unit test examples with yarn test-unit
- Include integration test examples with yarn test-integration
- Document test filtering by file path and wildcard patterns
- Explain test runner frameworks (mocha and playwright)