v0.16.4

0.16.4

Changed

• Bump workspace dependencies: `rust_decimal` 1.40 → 1.41, `rayon` 1.11 → 1.12, `uuid` 1.19 → 1.23, `tokio` 1.43 → 1.52.

Fixed

• Repair three doctests broken by the `NonZeroUsize` migration in 0.16.0:
  • `src/pricing/mod.rs` — `telegraph(..)` / `monte_carlo_option_pricing(..)` examples now wrap literal step / simulation counts with `nz!(..)`.
  • `src/utils/others.rs` — `deterministic_rng` doctest imports `rand::RngExt` for `.random::()`.

205 doctests / 3760 lib tests pass on the bumped deps.