Apply suggestions from code review

Author: newtork

core/src/main/java/com/sap/ai/sdk/core/commons/ClientError.java

@@ -2,7 +2,10 @@
 
 import javax.annotation.Nonnull;
 
-/** Generic class that contains a JSON error response. */
+/**
+ * Generic class that contains a JSON error response.
+ * @since 1.1.0
+ */
 public interface ClientError {
   /**
    * Get the error message.

core/src/main/java/com/sap/ai/sdk/core/commons/ClientException.java

@@ -2,6 +2,9 @@
 
 import lombok.experimental.StandardException;
 
-/** Generic exception for errors occurring when using AI SDK clients. */
+/**
+ * Generic exception for errors occurring when using AI SDK clients.
+ * @since 1.1.0
+ */
 @StandardException
 public class ClientException extends RuntimeException {}

core/src/main/java/com/sap/ai/sdk/core/commons/ClientResponseHandler.java

@@ -20,10 +20,11 @@
 import org.apache.hc.core5.http.io.entity.EntityUtils;
 
 /**
- * Parse incoming JSON responses and handles any errors
+ * Parse incoming JSON responses and handles any errors. For internal use only.
  *
  * @param <T> The type of the response
  * @param <E> The type of the exception to throw
+ * @since 1.1.0
  */
 @Slf4j
 @RequiredArgsConstructor