Improve security compliance tests for production readiness #18

The current security compliance tests need to be enhanced to meet production standards. This issue is to:

• Review existing security-related test cases
• Add missing tests to cover normal security compliance requirements (authentication, authorization, data protection, etc.)
• Fix or refactor broken or outdated tests
• Ensure that the testing suite provides reliable coverage, helping the codebase become more production-ready

The goal is to ensure robust and reliable security testing for the application.