fix(#138): carte AM dédiée, titre placement et consent_photo au payload.

Améliore la zone AM/scolarisation (carte dédiée + titre), envoie
consent_photo à l'inscription parent, et parse le consentement enfant
de façon plus robuste (heuristique photo tant que le back ne persiste pas).

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/lib/models/enfant_admin_model.dart

@@ -48,17 +48,28 @@ class EnfantAdminModel {
       }
     }
 
+    final photoUrl = json['photo_url'] as String? ?? json['photoUrl'] as String?;
+    final hasPhoto = (photoUrl ?? '').trim().isNotEmpty;
+    // L'inscription parent exigeait le consentement pour envoyer la photo, mais
+    // le back a longtemps forcé consent_photo=false (voir reprise_mapper).
+    final consentFromApi = _parseBool(json['consent_photo']) ||
+        _parseBool(json['consentement_photo']) ||
+        _parseBool(json['consentPhoto']);
+
     return EnfantAdminModel(
       id: (json['id'] ?? '').toString(),
-      firstName: json['first_name'] as String?,
-      lastName: json['last_name'] as String?,
-      gender: json['gender'] as String?,
-      birthDate: _dateString(json['birth_date']),
-      dueDate: _dateString(json['due_date']),
-      status: normalizeEnfantStatus(json['status']?.toString()),
-      photoUrl: json['photo_url'] as String?,
-      consentPhoto: json['consent_photo'] == true,
-      isMultiple: json['is_multiple'] == true,
+      firstName: json['first_name'] as String? ?? json['prenom'] as String?,
+      lastName: json['last_name'] as String? ?? json['nom'] as String?,
+      gender: json['gender'] as String? ?? json['genre'] as String?,
+      birthDate: _dateString(json['birth_date'] ?? json['date_naissance']),
+      dueDate: _dateString(json['due_date'] ?? json['date_prevue_naissance']),
+      status: normalizeEnfantStatus(
+        (json['status'] ?? json['statut'])?.toString(),
+      ),
+      photoUrl: photoUrl,
+      consentPhoto: consentFromApi || hasPhoto,
+      isMultiple: _parseBool(json['is_multiple']) ||
+          _parseBool(json['est_multiple']),
       parentLinks: links,
     );
   }
@@ -76,6 +87,15 @@ class EnfantAdminModel {
     };
   }
 
+  static bool _parseBool(dynamic value) {
+    if (value == true || value == 1) return true;
+    if (value is String) {
+      final s = value.trim().toLowerCase();
+      return s == 'true' || s == '1' || s == 't' || s == 'yes';
+    }
+    return false;
+  }
+
   static String? _dateString(dynamic v) {
     if (v == null) return null;
     if (v is String) return v.split('T').first;