During February 2025, Hristiya worked on the bena-sudo/rag2daw2025frontend and bena-sudo/rag2daw2025 repositories, delivering user-facing features and strengthening security. She established a role-based access control foundation by designing user, role, and permission schemas, and expanded permissions for chat, questions, and document workflows. Her backend work included consolidating CORS and security configurations using Java and Spring Security, enabling robust frontend-backend integration. On the frontend, she improved UI responsiveness and accessibility, added user personalization with a nickname feature, and enhanced data filtering using Angular and CSS. Her contributions addressed both feature delivery and code quality, supporting scalable, secure development.