✨ Basic websocket connection

lib/types/websocket.dart

@@ -0,0 +1,17 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'websocket.freezed.dart';
+part 'websocket.g.dart';
+
+@freezed
+class WebSocketPackage with _$WebSocketPackage {
+  const factory WebSocketPackage({
+    @JsonKey(name: 'w') @Default('unknown') String method,
+    @JsonKey(name: 'e') String? endpoint,
+    @JsonKey(name: 'm') String? message,
+    @JsonKey(name: 'p') @Default({}) Map<String, dynamic>? payload,
+  }) = _WebSocketPackage;
+
+  factory WebSocketPackage.fromJson(Map<String, dynamic> json) =>
+      _$WebSocketPackageFromJson(json);
+}