{
  "schemaVersion": "1.0",
  "courseId": "semiclassical-gravity",
  "labId": "semiclassical-scale",
  "title": "Archives de validité semi-classiques",
  "description": "Sources moyennes, fluctuations, courbures et approximation-validité.",
  "columns": [
    {
      "id": "state",
      "label": "État",
      "type": "text",
      "unit": "label",
      "description": "Spécification de l’état quantique."
    },
    {
      "id": "curvature_radius",
      "label": "Rayon de courbure",
      "type": "number",
      "unit": "m",
      "description": "Rayon de courbure de fond."
    },
    {
      "id": "stress_scale",
      "label": "Échelle de contrainte",
      "type": "number",
      "unit": "J/m³",
      "description": "Échelle moyenne de contrainte renormalisée."
    },
    {
      "id": "backreaction_ratio",
      "label": "Rapport de rétroaction",
      "type": "number",
      "unit": "dimensionless",
      "description": "Diagnostic de validité de source moyenne."
    },
    {
      "id": "fluctuation_ratio",
      "label": "Rapport de fluctuation",
      "type": "number",
      "unit": "dimensionless",
      "description": "Diagnostic des fluctuations de stress."
    },
    {
      "id": "valid",
      "label": "Approximation valide",
      "type": "boolean",
      "unit": "boolean",
      "description": "Décision déclarée sous les seuils enregistrés."
    }
  ]
}