Function handleSubmit

frontend/src/components/Chat/InputArea.tsx:34–40

(e: React.FormEvent)

  ];

  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();
    if (message.trim() && !isLoading && currentPipeline) {
      sendMessage(message, currentPipeline.id);
      setMessage('');
    }
  };

  const handleKeyDown = (e: KeyboardEvent<HTMLTextAreaElement>) => {
    if (e.key === 'Enter' && !e.shiftKey) {