Expose logPrefix in ClientResponse

This commit exposes the logPrefix field in the ClientResponse interface.

Closes gh-24146

spring-webflux/src/main/java/org/springframework/web/reactive/function/client/ClientResponse.java

@@ -204,6 +204,19 @@ public interface ClientResponse {
 	 */
 	Mono<WebClientResponseException> createException();
 
+	/**
+	 * Return a log message prefix to use to correlate messages for this response.
+	 * The prefix is based on the {@linkplain ClientRequest#logPrefix() client
+	 * log prefix}, which itself is based on the value of the request attribute
+	 * {@link ClientRequest#LOG_ID_ATTRIBUTE} along with some extra formatting
+	 * so that the prefix can be conveniently prepended with no further
+	 * formatting no separators required.
+	 * @return the log message prefix or an empty String if the
+	 * {@link ClientRequest#LOG_ID_ATTRIBUTE} was not set.
+	 * @since 5.2.3
+	 */
+	String logPrefix();
+
 
 	// Static builder methods
 

spring-webflux/src/main/java/org/springframework/web/reactive/function/client/DefaultClientResponse.java

@@ -225,6 +225,11 @@ class DefaultClientResponse implements ClientResponse {
 				});
 	}
 
+	@Override
+	public String logPrefix() {
+		return this.logPrefix;
+	}
+
 	// Used by DefaultClientResponseBuilder
 	HttpRequest request() {
 		return this.requestSupplier.get();

spring-webflux/src/main/java/org/springframework/web/reactive/function/client/support/ClientResponseWrapper.java

@@ -153,6 +153,11 @@ public class ClientResponseWrapper implements ClientResponse {
 		return this.delegate.createException();
 	}
 
+	@Override
+	public String logPrefix() {
+		return this.delegate.logPrefix();
+	}
+
 	/**
 	 * Implementation of the {@code Headers} interface that can be subclassed
 	  * to adapt the headers in a