Sonali worked on the care_fe repository, focusing on enhancing validation and error handling within the bed-stay workflows and location time configuration features. She addressed a critical bug by ensuring that validation errors are clearly displayed during bed stay completion, improving both user feedback and data integrity. Using React and TypeScript, she implemented robust error handling for batch requests, reducing the risk of silent failures and making the application more resilient. Her contributions also included adding date validation to prevent invalid configurations, which improved the overall user experience. The work demonstrated a solid grasp of frontend development and UI/UX principles.