Worked on stabilizing and refactoring the club information update flow in the academic-relations/ar-002-clubs repository, focusing on aligning form context types and clarifying field naming to reduce maintenance complexity. Improved repository hygiene and testing reliability in sparcs-kaist/clubs by removing unnecessary submodules, correcting variable usage, and simplifying mock environments. Enabled robust, role-based testing scenarios by restoring mock access tokens for various user roles, ensuring realistic coverage. Utilized React and TypeScript for frontend development, with a strong emphasis on API integration and mocking strategies. The work prioritized business value by delivering reliable user-facing features and strengthening the overall testing infrastructure.