Type your first message while a cloud session is being set up

What

When you start a cloud session (Claude Code running on remote machines), a checklist shows setup progress. It now includes a box where you can type, with the placeholder "Type your message while the session is set up". Before, it said "Typing is paused until the prompt opens".

• The hints now read "You can send your message once the session opens" and "A question is waiting. Pause typing to see it".
• Pressing Enter before the session opens does not send; it shows "Not sent. You can send your message once the session opens".
• If creation is cancelled, the exit message adds "Your message was not sent:" followed by what you typed.
• Ctrl+C no longer cancels while the box has text in it.
• The new step is named ccr_create_prompt_line, next to ccr_create_checklist and ccr_cut_off_agents, and is reported when creation is cancelled or fails, along with tengu_cloud_create_prompt_return_ignored.

A new header, x-claude-code-route-final-answer, is also defined, and the code that checks for it also needs a route on the host.

Why

You can write your first message during setup instead of waiting. A message that has not been sent is shown back to you if creation is cancelled, and Ctrl+C will not throw away a draft.