{
  "completed_step": "C347",
  "next_proposed_step": "C348",
  "question": "Exhaust the existing quarter-year component pairings for the598 primary and599 companion gaps and both held-endpoint repairs. Determine exact phase requirements and compare component-preserving gap conversion with a single physical-time affine dilation.",
  "reason_selected_after_current_result": "The whole-biography extension fails. The remaining local arithmetic risk is an unnoticed phase combination or rounding that could obscure the companion failure.",
  "executed": false,
  "authorization_remaining": 6,
  "fixed_scope": "Mirror/529; regular Gears Noah/Shem/Flood only; SP companion local. Fixed source inputs, no canonical/graph changes."
}