Estado base antes de integración Cognito.

Incluye admin web Spring Boot, API JWT para escáner y app Flutter qrscanner con login y escaneo de pases.

flutter-app/qrscanner/lib/models/pass_code.dart

@@ -0,0 +1,31 @@
+class PassCode {
+  const PassCode({
+    required this.id,
+    required this.name,
+    required this.code,
+    required this.status,
+    required this.scanned,
+    required this.createdAt,
+    this.scannedAt,
+  });
+
+  factory PassCode.fromJson(Map<String, dynamic> json) {
+    return PassCode(
+      id: (json['id'] as num).toInt(),
+      name: json['name'] as String? ?? '',
+      code: json['code'] as String? ?? '',
+      status: json['status'] as String? ?? '',
+      scanned: json['scanned'] == true,
+      createdAt: json['createdAt'] as String? ?? '',
+      scannedAt: json['scannedAt'] as String?,
+    );
+  }
+
+  final int id;
+  final String name;
+  final String code;
+  final String status;
+  final bool scanned;
+  final String createdAt;
+  final String? scannedAt;
+}