added jsoniginore for all request and response

src/main/java/com/billpaymentservice/bbps/dto/AmountOptionDTO.java

@@ -1,6 +1,8 @@
 package com.billpaymentservice.bbps.dto;
 import java.util.List;
 
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
 import lombok.Getter;
 import lombok.Setter;
 import lombok.ToString;
@@ -8,6 +10,8 @@ import lombok.ToString;
 @Getter
 @Setter
 @ToString
+@JsonIgnoreProperties(ignoreUnknown = true)
+
 public class AmountOptionDTO{
    private String amountOptionId;            // Matches "amountOptionId" from JSON
     private List<String> amountBreakupSets;              // Reference to BillerResponseParams (only ID, not full entity)