feat: webview registration

lib/features/auth/presentation/bloc/auth_state.dart

@@ -0,0 +1,18 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+part 'auth_state.freezed.dart';
+
+@freezed
+class AuthState with _$AuthState {
+  const factory AuthState() = _AuthState;
+
+  const factory AuthState.loading() = AuthStateLoading;
+
+  const factory AuthState.loaded({
+    required String token,
+  }) = AuthStateLoaded;
+
+  const factory AuthState.error({
+    required String errorMessage,
+  }) = AuthStateError;
+}