Function counter_increments

nodedb/src/control/security/observability.rs:295–303

()

    #[test]
    fn counter_increments() {
        let m = AuthMetrics::new();
        m.record_auth_success("jwt");
        m.record_auth_success("jwt");
        m.record_auth_failure("password");

        assert_eq!(m.auth_success_jwt.load(Ordering::Relaxed), 2);
        assert_eq!(m.auth_failure_password.load(Ordering::Relaxed), 1);
    }

    #[test]
    fn histogram_bucketing() {