{
  "contract_version": "gab_057_contract_v1",
  "gab_id": "GAB-057",
  "canonical_name": "StoryMissionCard",
  "module_owner": "EdTechStoryLearning",
  "renderer_key": "text_cta",
  "required_fields": [
    "gab_id",
    "mission_card_id",
    "title",
    "objective",
    "primary_cta"
  ],
  "optional_fields": [
    "badge_label",
    "meta_chips",
    "feedback_text"
  ],
  "field_types": {
    "title": "string — titre de la mission, affiché en grand",
    "objective": "string — description de l'objectif pédagogique",
    "badge_label": "string — libellé du badge (ex: '🎯 Mission')",
    "meta_chips": "array<{icon:string, label:string}> — métadonnées contextuelles (durée, difficulté, épisode)",
    "primary_cta": "object{label:string, label_active:string, action:string} — CTA principal : libellé avant clic, libellé après clic, identifiant d'action",
    "feedback_text": "string — message affiché après activation du CTA"
  },
  "constraints": [
    "primary_cta.label : libellé initial du bouton (avant clic), vient du JSON.",
    "primary_cta.label_active : libellé après activation ; si absent, on conserve label.",
    "meta_chips : ordre libre ; l'affichage reste horizontal avec flex-wrap.",
    "feedback_text : affiché en animation slide-in après clic ; si absent, aucun feedback."
  ],
  "blocked_conditions": [
    "title absent (BLOCKED)",
    "objective absent (BLOCKED)",
    "primary_cta absent (BLOCKED)"
  ],
  "accessibility": [
    "keyboard_navigable",
    "focus_visible",
    "prefers_reduced_motion",
    "button_disabled_after_activation"
  ],
  "qa_cases": [
    { "case": "instance conforme", "expected": "rendu complet, 0 erreur" },
    { "case": "champ requis manquant (title)", "expected": "BLOCKED listant le champ" },
    { "case": "champ requis manquant (primary_cta)", "expected": "BLOCKED listant le champ" },
    { "case": "clic CTA", "expected": "bouton désactivé, label_active affiché, feedback_text visible avec animation" },
    { "case": "instance externe injectée via init(ext)", "expected": "le rendu change sans modifier le HTML" },
    { "case": "responsive 375/768/1024", "expected": "aucun débordement horizontal, meta_chips flex-wrap" }
  ],
  "traceability": {
    "derived_from_core_gab": "GAB-057",
    "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)."
  }
}