- marginal_freight()'s docstring claimed small additions "cost ~0" if
they fit in slack - the code is actually a continuous amortized rate
with no such threshold. Fixed the wording to match the real behavior.
- The one known failing test asserted fixed money values from a 2026-09-18
screenshot against live, drifting market prices - removed that
assertion (it was testing market drift, not code correctness) but kept
the exact area check. Replaced with a structural, price-independent
regression check instead of just deleting: degradation == prod_cost/180
and plan_cost == prod_cost+infra_cost+cm_cost, asserted directly from
simulate()'s own fields, holds at any price.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
dodoxandClaude Sonnet 5
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