feat(wyatt_app_template): use brickgen

apps/wyatt_app_template/starting_template/lib/domain/entities/integer.dart

@@ -0,0 +1,11 @@
+// ignore_for_file: public_member_api_docs, sort_constructors_first
+import 'package:wyatt_architecture/wyatt_architecture.dart';
+
+class Integer extends Entity {
+  const Integer(this.value);
+
+  final int value;
+
+  @override
+  String toString() => 'Integer(value: $value)';
+}