Function integrate_trajectory 

pub fn integrate_trajectory(
    initial_state: [f64; 6],
    t_span: (f64, f64),
    params: TrajectoryParams,
    method: &str,
    tolerance: f64,
    max_step: f64,
) -> Vec<(f64, Vector6<f64>)>

Main trajectory integration function

Legacy/unchecked entry point (MBA-1338): wind segments are sorted and consumed without validation, so non-finite fields silently poison the returned trajectory. Prefer try_integrate_trajectory, which rejects malformed segments with a typed error before any integration work.