Compile a scenario with the client's compiler defaults.
Run a batch sweep. Scenarios / leaders / turns / seed are the caller's responsibility; provider + costPreset + models inherit.
Run one simulation. Leader + key personnel passed per-call; all other options inherit from the client with per-call overrides.
Handle returned by
createParacosmClient. The three methods mirror the corresponding standalone exports — same arg shapes, same return types — but with the client's defaults layered in.