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.

まず、CLI の spinner と質問または承認プロンプトの処理を追跡してください。入力待ち用の明確に区別できるテキストまたはアイコンの状態を追加し、応答後にアニメーションを再開し、バックグラウンドのアクティビティは別に表示し続けてください。色に頼らなくても待機状態が明確になることを確認してください。