Azurite focused on backend reliability improvements for the traP-jp/traO-Judge-judge repository, addressing a critical issue in user session validation. Over the course of the month, Azurite identified and resolved a bug where the session_id type in the get_user function did not align with the cookie-derived value, leading to potential mismatches during user retrieval. By updating the session_id type to Option<&str>, Azurite ensured consistent session validation and reduced errors in session state management. The work leveraged Rust for backend and API development, emphasizing careful codebase maintenance and targeted problem-solving rather than new feature development during this period.