Worked across ant-design/ant-design, langgenius/dify, and alephpiece/cherry-studio to deliver UI improvements, data model enhancements, and code quality upgrades. In ant-design/ant-design, introduced forwardRef to the Dropdown component for React 18 compatibility and resolved modal footer alignment issues using flex layouts. Enhanced langgenius/dify by adding a missing phase field to the _TokenData TypedDict and refactored type checks for better maintainability. Addressed provider compatibility and model detection bugs in alephpiece/cherry-studio, adding regression tests to prevent future issues. Leveraged Python, TypeScript, and React, applying skills in UI/UX design, backend development, and software design patterns throughout the work.