Worked on the LuccaSA/lucca-front repository to enhance the reliability of the time picker component, focusing on user input accuracy and consistent state handling. Addressed a bug that previously prevented typing zero in an empty hours field, enabling users to quickly set midnight. Standardized the representation of empty states using en-dashes and updated the input logic to distinguish between empty and zero values. Added regression tests to ensure correct behavior and prevent future issues. All changes were implemented using Angular and TypeScript, with a strong emphasis on frontend development best practices and maintaining code quality through unit testing and continuous integration.