+source currency pick fix +fx side propagation

api/proto/payments/quotation/v2/quotation.proto

@@ -6,6 +6,7 @@ option go_package = "github.com/tech/sendico/pkg/proto/payments/quotation/v2;quo
 
 import "api/proto/payments/shared/v1/shared.proto";
 import "api/proto/common/money/v1/money.proto";
+import "api/proto/common/fx/v1/fx.proto";
 import "api/proto/common/payment/v1/settlement.proto";
 import "api/proto/payments/endpoint/v1/endpoint.proto";
 import "api/proto/payments/quotation/v2/interface.proto";
@@ -19,6 +20,7 @@ message QuoteIntent {
   payments.quotation.v2.FeeTreatment fee_treatment = 5;
   string settlement_currency = 6;
   string comment = 7;
+  common.fx.v1.Side fx_side = 8;
 }
 
 // QuotePaymentRequest is the request to quote a single v2 payment.