chat-memory-cassandra : Fix message order after retrieving from db

Signed-off-by: Linar Abzaltdinov <[email protected]>

Author: linarkou

memory/spring-ai-model-chat-memory-cassandra/src/main/java/org/springframework/ai/chat/memory/cassandra/CassandraChatMemory.java

@@ -18,6 +18,7 @@
 
 import java.time.Instant;
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicLong;
 
@@ -158,6 +159,7 @@ public List<Message> get(String sessionId, int lastN) {
 				messages.add(new UserMessage(user));
 			}
 		}
+		Collections.reverse(messages);
 		return messages;
 	}