- Add Jest testing framework with React Testing Library
- Configure Playwright for E2E testing
- Add TypeScript strict mode configuration
- Implement unit tests for common components (LanguageTag, WorkCard)
- Add Babel configuration for testing compatibility
- Update Vite config for better production builds
- Add comprehensive type definitions for testing libraries
- Configure test scripts and coverage reporting
- Enhance package.json with testing and quality scripts
Implemented by Jules AI agent for production readiness and code quality enhancement.
