feat(#140): fiches admin famille — IdentityBlock, parsing enfants et avatars web

Extrait IdentityBlock réutilisable, aligne les modales parent/enfant sur le style validation, corrige le parsing parentChildren et les URLs /uploads en Flutter web.

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

frontend/lib/models/enfant_admin_model.dart

@@ -89,8 +89,10 @@ class EnfantParentLink {
   EnfantParentLink({required this.parentId, this.parentName});
 
   factory EnfantParentLink.fromJson(Map<String, dynamic> json) {
-    final parent = json['parent'];
+    final parentId =
+        (json['parentId'] ?? json['id_parent'] ?? '').toString();
     String? name;
+    final parent = json['parent'];
     if (parent is Map<String, dynamic>) {
       final user = parent['user'];
       if (user is Map<String, dynamic>) {
@@ -99,7 +101,7 @@ class EnfantParentLink {
       }
     }
     return EnfantParentLink(
-      parentId: (json['parentId'] ?? json['id_parent'] ?? '').toString(),
+      parentId: parentId,
       parentName: name,
     );
   }

frontend/lib/models/parent_child_summary.dart

@@ -23,9 +23,38 @@ class ParentChildSummary {
   factory ParentChildSummary.fromJson(Map<String, dynamic> json) {
     return ParentChildSummary(
       id: (json['id'] ?? '').toString(),
-      firstName: json['first_name'] as String?,
-      lastName: json['last_name'] as String?,
-      status: (json['status'] ?? '').toString(),
+      firstName: (json['first_name'] ?? json['prenom'])?.toString(),
+      lastName: (json['last_name'] ?? json['nom'])?.toString(),
+      status: (json['status'] ?? json['statut'] ?? '').toString(),
     );
   }
+
+  /// Parse un lien `parentChildren` (objet enfant imbriqué ou id seul).
+  static ParentChildSummary? fromParentChildLink(Map<String, dynamic> link) {
+    final childRaw = link['child'] ?? link['enfant'];
+    if (childRaw is Map) {
+      return ParentChildSummary.fromJson(Map<String, dynamic>.from(childRaw));
+    }
+
+    if (link.containsKey('first_name') ||
+        link.containsKey('prenom') ||
+        link.containsKey('id')) {
+      final id = (link['id'] ?? '').toString();
+      if (id.isNotEmpty &&
+          (link.containsKey('first_name') || link.containsKey('prenom'))) {
+        return ParentChildSummary.fromJson(link);
+      }
+    }
+
+    final enfantId =
+        link['enfantId'] ?? link['id_enfant'] ?? link['enfant_id'];
+    if (enfantId != null && enfantId.toString().isNotEmpty) {
+      return ParentChildSummary(
+        id: enfantId.toString(),
+        status: '',
+      );
+    }
+
+    return null;
+  }
 }

frontend/lib/models/parent_model.dart

@@ -13,28 +13,44 @@ class ParentModel {
   });
 
   factory ParentModel.fromJson(Map<String, dynamic> json) {
-    final userJson = Map<String, dynamic>.from(json['user'] ?? json);
-    if (json['numero_dossier'] != null && userJson['numero_dossier'] == null) {
-      userJson['numero_dossier'] = json['numero_dossier'];
+    final root = Map<String, dynamic>.from(json);
+    final userJson = Map<String, dynamic>.from(root['user'] ?? root);
+    if (root['numero_dossier'] != null && userJson['numero_dossier'] == null) {
+      userJson['numero_dossier'] = root['numero_dossier'];
     }
     final user = AppUser.fromJson(userJson);
 
-    final children = <ParentChildSummary>[];
-    final links = json['parentChildren'] as List?;
-    if (links != null) {
-      for (final link in links) {
-        if (link is Map<String, dynamic> && link['child'] is Map<String, dynamic>) {
-          children.add(
-            ParentChildSummary.fromJson(link['child'] as Map<String, dynamic>),
-          );
-        }
-      }
-    }
+    final children = _parseChildren(root);
+    final links = root['parentChildren'] ?? root['parent_children'];
+    final linkCount = links is List ? links.length : 0;
 
     return ParentModel(
       user: user,
-      childrenCount: children.isNotEmpty ? children.length : (links?.length ?? 0),
+      childrenCount: children.isNotEmpty ? children.length : linkCount,
       children: children,
     );
   }
+
+  static List<ParentChildSummary> _parseChildren(Map<String, dynamic> json) {
+    final children = <ParentChildSummary>[];
+    final seen = <String>{};
+
+    void add(ParentChildSummary? child) {
+      if (child == null || child.id.isEmpty || seen.contains(child.id)) return;
+      seen.add(child.id);
+      children.add(child);
+    }
+
+    final links = json['parentChildren'] ?? json['parent_children'];
+    if (links is List) {
+      for (final link in links) {
+        if (link is! Map) continue;
+        add(ParentChildSummary.fromParentChildLink(
+          Map<String, dynamic>.from(link),
+        ));
+      }
+    }
+
+    return children;
+  }
 }