refactor: system metadata (#8923)

refactor(server): system metadata

mobile/openapi/test/reverse_geocoding_state_response_dto_test.dart

@@ -0,0 +1,32 @@
+//
+// AUTO-GENERATED FILE, DO NOT MODIFY!
+//
+// @dart=2.12
+
+// ignore_for_file: unused_element, unused_import
+// ignore_for_file: always_put_required_named_parameters_first
+// ignore_for_file: constant_identifier_names
+// ignore_for_file: lines_longer_than_80_chars
+
+import 'package:openapi/api.dart';
+import 'package:test/test.dart';
+
+// tests for ReverseGeocodingStateResponseDto
+void main() {
+  // final instance = ReverseGeocodingStateResponseDto();
+
+  group('test ReverseGeocodingStateResponseDto', () {
+    // String lastImportFileName
+    test('to test the property `lastImportFileName`', () async {
+      // TODO
+    });
+
+    // String lastUpdate
+    test('to test the property `lastUpdate`', () async {
+      // TODO
+    });
+
+
+  });
+
+}