chore(app): сгенерированный Dart-клиент

just gen-client — покрывает links, cashflow-broker, ручные цены,
imports/pending, goals/income/rebalance/tax/benchmarks.

app/packages/api_client/test/cash_available_test.dart

@@ -0,0 +1,11 @@
+import 'package:test/test.dart';
+import 'package:fintracker_api/fintracker_api.dart';
+
+// tests for CashAvailable
+void main() {
+  final CashAvailable? instance = /* CashAvailable(...) */ null;
+  // TODO add properties to the entity
+
+  group(CashAvailable, () {
+  });
+}