- VRE potential/curtailment: apply availability=1.0 default for profile-driven
  VRE (matches solver); collapse multiple upper_limit profiles to binding min.
- Cost summaries: guard node-state slack lookup under penalty_method=off.
- Deps: highspy>=1.14.0 (user_objective_scale option).
- Also carries the unpublished 4.0.3 multi-period stochastic continuation fix.