{
  "contract_version": "gab_215_contract_v1",
  "gab_id": "GAB-215",
  "canonical_name": "AdaptiveLearningProgressReason",
  "module_owner": "EdTechAdaptiveLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "progress_reason_id",
    "decision",
    "decision_tag",
    "decision_tag_variant",
    "title",
    "body",
    "reason",
    "primary_cta",
    "decisions_enum"
  ],
  "optional_fields": [
    "progress_label",
    "progress_value",
    "progress_percent"
  ],
  "field_types": {
    "decision": "enum['advance','review','remediate','adjust_difficulty','repeat']",
    "decision_tag_variant": "enum['advance','review','remediate']",
    "body": "string — HTML enrichi autorisé (<b> uniquement), jamais de jugement définitif",
    "reason": "string — HTML enrichi autorisé (<b> uniquement), source lisible en langage élève",
    "primary_cta": "object{label:string, action:string}",
    "progress_percent": "number(0..100)",
    "decisions_enum": "array<{key,tag,tag_variant,title,body,reason,cta_label}> — 5 variantes obligatoires"
  },
  "constraints": [
    "decision doit correspondre à une entrée existante dans decisions_enum.",
    "reason DOIT être lisible en langage élève — pas de logs bruts, pas de scores bruts.",
    "body ne doit jamais culpabiliser ni porter de jugement définitif sur l'élève.",
    "decision_tag_variant détermine la couleur du badge (advance=mint, review=sky, remediate=gold).",
    "primary_cta.label vient du JSON — jamais hardcodé dans le HTML.",
    "progress_percent dans [0,100] si présent."
  ],
  "blocked_conditions": [
    "decision absent",
    "title absent",
    "reason absent",
    "decisions_enum vide ou absent"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "bouton CTA accessible au clavier",
    "aria-labels sur éléments interactifs"
  ],
  "qa_cases": [
    { "case": "instance conforme (decision=advance)", "expected": "rendu complet, badge mint, CTA 'Essayer le niveau brevet'" },
    { "case": "champ requis manquant (decision absent)", "expected": "BLOCKED listant le champ" },
    { "case": "champ requis manquant (reason absent)", "expected": "BLOCKED listant le champ" },
    { "case": "decisions_enum vide", "expected": "BLOCKED decisions_enum vide" },
    { "case": "instance externe injectée (decision=remediate)", "expected": "rendu change : badge gold, titre 'Un petit parcours pour consolider'" },
    { "case": "responsive 375/768/1024", "expected": "aucun débordement horizontal" },
    { "case": "body contenant <b>", "expected": "rendu HTML enrichi visible, pas de texte brut" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-215",
    "note": "Ce schema VALIDE l'instance. Le contrat pédagogique complet (input_contract/validation_logic/feedback_scoring_logic) vit dans le CORE-GAB officiel, pas ici (évite la duplication)."
  }
}