added comment for payment, changed intent and added amount ui in operations

frontend/pshared/lib/provider/payment/quotation/intent_builder.dart

@@ -10,10 +10,8 @@ import 'package:pshared/models/payment/kind.dart';
 import 'package:pshared/models/payment/methods/card.dart';
 import 'package:pshared/models/payment/methods/crypto_address.dart';
 import 'package:pshared/models/payment/methods/data.dart';
-import 'package:pshared/models/payment/methods/iban.dart';
 import 'package:pshared/models/payment/methods/ledger.dart';
 import 'package:pshared/models/payment/methods/managed_wallet.dart';
-import 'package:pshared/models/payment/methods/russian_bank.dart';
 import 'package:pshared/models/payment/methods/type.dart';
 import 'package:pshared/models/money.dart';
 import 'package:pshared/models/payment/settlement_mode.dart';
@@ -27,6 +25,7 @@ import 'package:pshared/utils/payment/fx_helpers.dart';
 
 class QuotationIntentBuilder {
   static const String _settlementCurrency = 'RUB';
+  static const String _addressBookCustomerFallbackId = 'address_book_customer';
 
   PaymentIntent? build({
     required PaymentAmountProvider payment,
@@ -38,9 +37,11 @@ class QuotationIntentBuilder {
     final sourceCurrency = source.selectedCurrencyCode;
     final paymentData = flow.selectedPaymentData;
     final selectedMethod = flow.selectedMethod;
+    final amountValue = payment.amount;
     if (sourceMethod == null || sourceCurrency == null || paymentData == null) {
       return null;
     }
+    if (amountValue == null) return null;
 
     final customer = _buildCustomer(
       recipient: recipients.currentObject,
@@ -51,7 +52,7 @@ class QuotationIntentBuilder {
         ? _settlementCurrency
         : sourceCurrency;
     final amount = Money(
-      amount: payment.amount.toString(),
+      amount: amountValue.toString(),
       currency: amountCurrency,
     );
     final isLedgerSource = source.selectedLedgerAccount != null;
@@ -65,6 +66,7 @@ class QuotationIntentBuilder {
       isLedgerSource: isLedgerSource,
       enabled: !isCryptoToCrypto,
     );
+    final comment = _resolveComment(payment.comment);
     return PaymentIntent(
       kind: PaymentKind.payout,
       amount: amount,
@@ -75,6 +77,7 @@ class QuotationIntentBuilder {
           ? FeeTreatment.addToSource
           : FeeTreatment.deductFromDestination,
       settlementMode: payment.settlementMode,
+      comment: comment,
       customer: customer,
     );
   }
@@ -134,17 +137,14 @@ class QuotationIntentBuilder {
     required PaymentMethod? method,
     required PaymentMethodData? data,
   }) {
-    final id = recipient?.id ?? method?.recipientRef;
-    if (id == null || id.isEmpty) return null;
+    final name = recipient?.name.trim();
+    if (name == null || name.isEmpty) return null;
+    final id = recipient?.id.trim();
+    final customerId = id == null || id.isEmpty
+        ? _addressBookCustomerFallbackId
+        : id;
 
-    final name = _resolveCustomerName(
-      method: method,
-      data: data,
-      recipient: recipient,
-    );
-    final parts = name == null || name.trim().isEmpty
-        ? const <String>[]
-        : name.trim().split(RegExp(r'\s+'));
+    final parts = name.split(RegExp(r'\s+'));
     final firstName = parts.isNotEmpty ? parts.first : null;
     final lastName = parts.length >= 2 ? parts.last : null;
     final middleName = parts.length > 2
@@ -152,7 +152,7 @@ class QuotationIntentBuilder {
         : null;
 
     return Customer(
-      id: id,
+      id: customerId,
       firstName: firstName,
       middleName: middleName,
       lastName: lastName,
@@ -160,33 +160,6 @@ class QuotationIntentBuilder {
     );
   }
 
-  String? _resolveCustomerName({
-    required PaymentMethod? method,
-    required PaymentMethodData? data,
-    required Recipient? recipient,
-  }) {
-    final card = method?.cardData ?? (data is CardPaymentMethod ? data : null);
-    if (card != null) {
-      final fullName = '${card.firstName} ${card.lastName}'.trim();
-      if (fullName.isNotEmpty) return fullName;
-    }
-
-    final iban = method?.ibanData ?? (data is IbanPaymentMethod ? data : null);
-    if (iban != null && iban.accountHolder.trim().isNotEmpty) {
-      return iban.accountHolder.trim();
-    }
-
-    final bank =
-        method?.bankAccountData ??
-        (data is RussianBankAccountPaymentMethod ? data : null);
-    if (bank != null && bank.recipientName.trim().isNotEmpty) {
-      return bank.recipientName.trim();
-    }
-
-    final recipientName = recipient?.name.trim();
-    return recipientName?.isNotEmpty == true ? recipientName : null;
-  }
-
   String? _resolveCustomerCountry({
     required PaymentMethod? method,
     required PaymentMethodData? data,
@@ -194,4 +167,9 @@ class QuotationIntentBuilder {
     final card = method?.cardData ?? (data is CardPaymentMethod ? data : null);
     return card?.country;
   }
+
+  String? _resolveComment(String comment) {
+    final normalized = comment.trim();
+    return normalized.isEmpty ? null : normalized;
+  }
 }