Frontend first draft

frontend/pshared/lib/api/requests/tokens/session_id.dart

@@ -0,0 +1,18 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'session_id.g.dart';
+
+
+@JsonSerializable(explicitToJson: true)
+class SessionID {
+  final String clientId;
+  final String deviceId;
+
+  const SessionID({
+    required this.clientId,
+    required this.deviceId,
+  });
+
+  factory SessionID.fromJson(Map<String, dynamic> json) => _$SessionIDFromJson(json);
+  Map<String, dynamic> toJson() => _$SessionIDToJson(this);
+}