@BeforeEach
    void setUp() {
        logger = SecurityAuditLogger.getInstance();
        logger.resetStatistics();
        logger.setJsonLoggingEnabled(false);
        logger.setSensitiveDataMaskingEnabled(true);
    }

    @Test
    @DisplayName("Test singleton instance")
    void testSingletonInstance() {
        SecurityAuditLogger logger1 = SecurityAuditLogger.getInstance();