fix(server): a Claude steer no longer waits forever on an unanswered interrupt

The SDK puts no deadline on the interrupt control request, so a CLI that
never answers it held the steer indefinitely. The steer now waits at most
5 seconds and is then sent, as when the interrupt fails.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
9223781a87Julius Marminge committed on 10/22/2026, 11:25:46 PMparent133b3ed

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