small fixes

frontend/pshared/lib/utils/money.dart

@@ -0,0 +1,12 @@
+import 'package:pshared/models/money.dart';
+
+
+double parseMoneyAmount(String? raw, {double fallback = 0}) {
+  final trimmed = raw?.trim();
+  if (trimmed == null || trimmed.isEmpty) return fallback;
+  return double.tryParse(trimmed) ?? fallback;
+}
+
+extension MoneyAmountX on Money {
+  double get amountValue => parseMoneyAmount(amount);
+}