Add doFinalizeLoop() hook to ToolCallAdvisor (#5064)

Introduce doFinalizeLoop() method as a symmetric counterpart to
doInitializeLoop(). This protected hook allows subclasses to perform
cleanup or finalization logic after the tool calling loop completes.

Signed-off-by: Christian Tzolov <[email protected]>

Author: tzolov

spring-ai-client-chat/src/main/java/org/springframework/ai/chat/client/advisor/ToolCallAdvisor.java

@@ -150,6 +150,11 @@ public ChatClientResponse adviseCall(ChatClientRequest chatClientRequest, CallAd
 		}
 		while (isToolCall); // loop until no tool calls are present
 
+		return this.doFinalizeLoop(chatClientResponse, callAdvisorChain);
+	}
+
+	protected ChatClientResponse doFinalizeLoop(ChatClientResponse chatClientResponse,
+			CallAdvisorChain callAdvisorChain) {
 		return chatClientResponse;
 	}