{
  "contract_version": "gab_254_contract_v1",
  "gab_id": "GAB-254",
  "canonical_name": "CollaborationLearningPeerFeedback",
  "module_owner": "EdTechCollaborationLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "peer_feedback_id",
    "title",
    "subtitle",
    "peer_feedback_type",
    "items",
    "primary_cta"
  ],
  "optional_fields": [
    "peer_feedback_type_enum",
    "peer_feedback_variants",
    "secondary_cta",
    "safety",
    "accessibility",
    "child_safety"
  ],
  "field_types": {
    "peer_feedback_type": "enum['written_answer','oral_feedback','checklist_review','two_stars_one_wish','parent_support']",
    "items": "array<{type:enum['star','wish'],icon:string,label:string,hint:string,placeholder_text:string}>  — au moins 1 item requis",
    "peer_feedback_variants": "object<peer_feedback_type → {title,subtitle,primary_cta}>",
    "safety": "object{header:string,body:string}",
    "primary_cta": "string",
    "secondary_cta": "string",
    "accessibility": "object{keyboard_navigable:boolean,focus_visible:boolean,prefers_reduced_motion:boolean}",
    "child_safety": "object{moderation:string,scope:string,blocked_if_off_topic:boolean}"
  },
  "constraints": [
    "peer_feedback_type doit appartenir à l'enum strict de 5 valeurs.",
    "items doit contenir au moins 1 entrée.",
    "primary_cta : libellé structurel venant du JSON — le HTML ne contient aucun label en dur.",
    "safety.body est non-négociable (child_safety) — ne pas supprimer.",
    "Les placeholder_text sont illustratifs ; le moteur ne les pré-remplit pas comme réponse utilisateur."
  ],
  "blocked_conditions": [
    "items absent ou tableau vide",
    "peer_feedback_type absent",
    "title absent"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "aria_labels_on_textareas"
  ],
  "qa_cases": [
    { "case": "instance conforme two_stars_one_wish", "expected": "rendu complet 3 items (2 étoiles + 1 souhait), 0 erreur" },
    { "case": "peer_feedback_type switché vers oral_feedback", "expected": "titre/sous-titre/cta mis à jour depuis peer_feedback_variants" },
    { "case": "items vide ou absent", "expected": "BLOCKED listant items" },
    { "case": "peer_feedback_type absent", "expected": "BLOCKED listant peer_feedback_type" },
    { "case": "instance externe injectée (init(ext))", "expected": "rendu change sans modifier le HTML" },
    { "case": "responsive 375/768/1024", "expected": "aucun débordement horizontal" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-254",
    "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)."
  }
}