backend/src/main/java/com/petshop/backend/service/ChatService.java

@@ -194,11 +194,6 @@ public class ChatService {
         return ConversationResponse.fromEntity(conversation, lastMessage);
     }
 
-    @Transactional
-    public ConversationResponse closeConversation(Long conversationId, Long userId, User.Role role) {
-        return updateConversation(conversationId, userId, role, new UpdateConversationRequest("CLOSED"));
-    }
-
     public List<MessageResponse> getMessages(Long conversationId, Long userId, User.Role role) {
         Conversation conversation = conversationRepository.findById(conversationId)
             .orElseThrow(() -> new ResourceNotFoundException("Conversation not found"));