🎨 Use feature based folder structure

lib/core/websocket.g.dart

@@ -0,0 +1,23 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'websocket.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_WebSocketPacket _$WebSocketPacketFromJson(Map<String, dynamic> json) =>
+    _WebSocketPacket(
+      type: json['type'] as String,
+      data: json['data'] as Map<String, dynamic>?,
+      endpoint: json['endpoint'] as String?,
+      errorMessage: json['error_message'] as String?,
+    );
+
+Map<String, dynamic> _$WebSocketPacketToJson(_WebSocketPacket instance) =>
+    <String, dynamic>{
+      'type': instance.type,
+      'data': instance.data,
+      'endpoint': instance.endpoint,
+      'error_message': instance.errorMessage,
+    };