Function pamoja_anomaly_with_capacity 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_anomaly_with_capacity(
    sigmas: f32,
    capacity: usize,
) -> *mut PamojaAnomaly

Creates an anomaly detector whose baseline keeps up to capacity readings.

Returns

A handle the caller must release with pamoja_anomaly_free, or null if capacity is not from 2 to PAMOJA_WINDOW_CAPACITY, since a spread needs two readings.

Safety

A returned handle must be freed exactly once.