Show a clear waiting-for-input state instead of continuing to animate the spinner

Sometimes the CLI asks me a question but the activity spinner keeps rotating. This makes it look like the agent is still working, when it actually needs my response. It's easy to leave it running and only later realize it was waiting for me.

Suggested behavior

• When the agent is waiting for an answer or approval, freeze or replace the spinner and show Waiting for your input.
• Resume the animation when my response is submitted and processing continues.
• If background agents or commands are still running, show that separately without hiding the fact that my input is needed.

The waiting state should be distinguishable through text or an icon, not just color. This would make it much easier to tell at a glance whether to wait or take action.

Rastrea primero el manejo del spinner del CLI y de las preguntas o solicitudes de aprobación. Añade un estado de texto o icono distinto para indicar que se está esperando una entrada, reanuda la animación después de una respuesta y mantén visible por separado cualquier actividad en segundo plano. Verifica que el estado de espera sea claro sin depender del color.