fix: Allow unknown properties from the API

src/main/java/com/resend/core/mapper/ResendMapper.java

@@ -2,6 +2,7 @@
 
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 /**
@@ -17,6 +18,7 @@ public class ResendMapper implements IMapper {
     public ResendMapper() {
         this.mapper = new ObjectMapper();
         this.mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+        this.mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
     }
 
     /**

src/main/java/com/resend/services/contacts/model/RemoveContactResponseSuccess.java

@@ -10,6 +10,9 @@ public class RemoveContactResponseSuccess extends BaseContact {
     @JsonProperty("deleted")
     private boolean deleted;
 
+    @JsonProperty("contact")
+    private String contact;
+
     /**
      * Default constructor
      */
@@ -23,8 +26,9 @@ public RemoveContactResponseSuccess() {
      * @param id The ID of the removed contact.
      * @param object The object of the removed contact.
      * @param deleted The state of the removed contact.
+     * @param contact The contact of the removed contact.
      */
-    public RemoveContactResponseSuccess(final String id, final String object, final boolean deleted) {
+    public RemoveContactResponseSuccess(final String id, final String object, final boolean deleted, final String contact) {
         super(id, object);
         this.deleted = deleted;
     }
@@ -37,4 +41,13 @@ public RemoveContactResponseSuccess(final String id, final String object, final
     public boolean getRemoved() {
         return deleted;
     }
+
+    /**
+     * Gets the contact of the removed item.
+     *
+     * @return The contact of the removed item.
+     */
+    public String getContact() {
+        return contact;
+    }
 }

src/test/java/com/resend/services/util/ContactsUtil.java

@@ -20,7 +20,7 @@ public static CreateContactResponseSuccess createContactResponseSuccess() {
     }
 
     public static RemoveContactResponseSuccess removeContactResponseSuccess() {
-        return new RemoveContactResponseSuccess("123", "contact", true);
+        return new RemoveContactResponseSuccess("123", "contact", true, "contact");
     }
 
     public static ListContactsResponseSuccess createContactsListResponse() {