Update mengyastore

mengyastore-backend-go/internal/models/order.go

@@ -16,5 +16,8 @@ type Order struct {
 	ContactPhone   string    `json:"contactPhone"`
 	ContactEmail   string    `json:"contactEmail"`
 	NotifyEmail    string    `json:"notifyEmail"`
+	PaymentMethod  string    `json:"paymentMethod,omitempty"`
+	PaymentExpectedTotal float64 `json:"paymentExpectedTotal,omitempty"`
+	PaymentExpiresAt *time.Time `json:"paymentExpiresAt,omitempty"`
 	CreatedAt      time.Time `json:"createdAt"`
 }