Test and refactor

[urd05]

PR Title: [Descriptive title summarizing the change]

PR Description:

[Provide a brief summary of the changes made. (어떤 파일 또는 폴더가 수정/추가/삭제 되었는지와 이유)]

Changes Included:

• Added new feature(s)
• Fixed identified bug(s)
• Updated relevant documentation
• Change UI design
• Code refactoring

Related Issue(s):

Link or reference any related issues or tickets.

Screenshots (if UI changes were made):

Attach screenshots or GIFs of any visual changes. (Only for frontend-related changes)

Notes for Reviewer:

Any specific instructions or points to be considered by the reviewer.

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Reviewer Checklist:

• Code is written in clean, maintainable, and idiomatic form.
• Automated test coverage is adequate.
• All existing tests pass.
• Manual testing has been performed to ensure the PR works as expected.
• Code review comments have been addressed or clarified.

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Additional Comments:

Add any other comments or information that might be useful for the
review process.