full app done

lib/models/value_card.dart

@@ -0,0 +1,33 @@
+/// A single values-sort card with title, description, and optional domain.
+library;
+
+/// Immutable card drawn from the values deck.
+class ValueCard {
+  const ValueCard({
+    required this.id,
+    required this.title,
+    required this.description,
+    this.domain = 'Values',
+  });
+
+  final String id;
+  final String title;
+  final String description;
+  final String domain;
+
+  factory ValueCard.fromJson(Map<String, dynamic> json) {
+    return ValueCard(
+      id: json['id'] as String,
+      title: json['title'] as String,
+      description: json['description'] as String? ?? '',
+      domain: json['domain'] as String? ?? 'Values',
+    );
+  }
+
+  Map<String, dynamic> toJson() => {
+        'id': id,
+        'title': title,
+        'description': description,
+        'domain': domain,
+      };
+}