{
  "schema": "footwell-tunnel-junction-validation-v1",
  "baseline_commit": "0c2011ce",
  "scope": "Common estimated body boundary construction only. Factory p234 and BMH front-centre-body distinguish footwell/front/top, inner-toeboard and floor roles; neither dimensions these contours or identifies fitted repair panels. The retained tunnel source supplies its existing unmeasured loft stations. The bulkhead central mouth and inner closing shelf/front collar/floor lip follow that reference envelope; former flat inner sidewalls are superseded. All shapes,1.5mm projected gauge, lip/edge stations and ownership are construction estimates, not a fitted weld/lap map, strength, fire/fume sealing, pedal/pipe clearance, cutting/welding template or verified removal path. No body, engine, gearbox, steering, pedal, floor or tunnel frame is moved. Static source contact does not verify actual fit or repair suitability.",
  "source_groups": 11,
  "valid_positive_step_solids": 22,
  "unchanged_mesh_payloads": 8,
  "bulkhead_change_mm3": {
    "added": 85447.23281799564,
    "removed": 0.0
  },
  "bulkhead_tunnel_source_overlap_mm3": {
    "before": 0.0,
    "after": 0.0
  },
  "retained_tunnel_is_within_reconstruction_envelope": true,
  "bulkhead_tunnel_shared_edge_material_witness": true,
  "side_checks": {
    "left": {
      "new_connected_closing_solid": true,
      "static_source_contacts_mm3": {
        "tunnel": 0.0,
        "floor": 0.0,
        "front_and_roof": 177.48000000002236,
        "bulkhead": 0.0
      },
      "roof_front_floor_shared_edge_material_witnesses": true,
      "former_inner_return_floor_overlap_mm3": 4731.173333332483
    },
    "right": {
      "new_connected_closing_solid": true,
      "static_source_contacts_mm3": {
        "tunnel": 0.0,
        "floor": 0.0,
        "front_and_roof": 0.0,
        "bulkhead": 0.0
      },
      "roof_front_floor_shared_edge_material_witnesses": true,
      "former_inner_return_floor_overlap_mm3": 4731.173333324096
    }
  },
  "unchanged_surrounding_sources": [
    "cabin-understructure-reference",
    "pedal-support-reference",
    "transmission-reference",
    "clutch-release-reference",
    "front-wheelhouse-reference"
  ],
  "sha256": {
    "front-footwell-reference.json": "441446e6d01c467c74f8fc959c566745f4e53433321b006b51043526d476e10a",
    "front-footwell-reference.step": "27ee4e1a4df9874fe864fc1d002533ecfb40d8e149bb896b93508cdf33a91d83"
  }
}