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  "unpriced": [
    "Fal image-to-3D was not submitted because credentials were absent; no Fal charge.",
    "Source-image extraction via imagegen has no exposed billable usage in this harness.",
    "Hosting/compute and connector/tool fees are excluded."
  ],
  "comparison_warning": "C is a full Luna-directed run with a different authored scene than A/B; cost and time are accounting comparisons, not a controlled quality isolate."
}