fix(vectorstore): expose protectFromBlocking option in VectorStoreChatMemoryAdvisor.Builder

Previously, protectFromBlocking was hardcoded and not configurable via the builder.
This change ensures the builder passes its protectFromBlocking value to the advisor,
making all constructor options available to users.

Author: markpollack

advisors/spring-ai-advisors-vector-store/src/main/java/org/springframework/ai/chat/client/advisor/vectorstore/VectorStoreChatMemoryAdvisor.java

@@ -70,8 +70,8 @@ public class VectorStoreChatMemoryAdvisor extends AbstractChatMemoryAdvisor<Vect
 	private final PromptTemplate systemPromptTemplate;
 
 	private VectorStoreChatMemoryAdvisor(VectorStore vectorStore, String defaultConversationId,
-			int chatHistoryWindowSize, PromptTemplate systemPromptTemplate, int order) {
-		super(vectorStore, defaultConversationId, chatHistoryWindowSize, true, order);
+			int chatHistoryWindowSize, boolean protectFromBlocking, PromptTemplate systemPromptTemplate, int order) {
+		super(vectorStore, defaultConversationId, chatHistoryWindowSize, protectFromBlocking, order);
 		this.systemPromptTemplate = systemPromptTemplate;
 	}
 
@@ -194,7 +194,7 @@ public Builder systemPromptTemplate(PromptTemplate systemPromptTemplate) {
 		@Override
 		public VectorStoreChatMemoryAdvisor build() {
 			return new VectorStoreChatMemoryAdvisor(this.chatMemory, this.conversationId, this.chatMemoryRetrieveSize,
-					this.systemPromptTemplate, this.order);
+					this.protectFromBlocking, this.systemPromptTemplate, this.order);
 		}
 
 	}