Worked on reliability and internationalization improvements across two frontend repositories using React and TypeScript. In ComfyUI_frontend, addressed a critical infinite recursion bug in the mask upload retry logic by refining error handling and ensuring the retry counter decremented correctly, which stabilized uploads and reduced user-facing errors during network interruptions. Later, contributed to CherryHQ/cherry-studio by fixing input handling in AddProviderPopup, preventing premature confirmation during Chinese character composition and enhancing the user experience for non-Latin provider names. Demonstrated strong debugging skills and attention to input validation, focusing on robust, maintainable code and improved workflows for diverse user scenarios.