[Bug]: A remote delegated task's asynchronous question never shows on the parent #26818

Before submitting

• I searched existing issues and did not find a duplicate.
• I included enough detail to reproduce or investigate the problem.

Area

apps/server

Steps to reproduce

1. With Linked environments on at both ends, link a "laptop" T3 Code server to a "box" server.
2. In a laptop thread, have the agent call delegate_task with target.environmentId set to the box and a Codex task that asks the user an asynchronous question mid-turn (a user_input request whose responseCapability.type is "message") and keeps working.

Expected behavior

The parent on the laptop lists the question, as it does for a local delegated task (the parent is woken with "asked a question and is still working"), and a reply or dismissal given on the parent reaches the task on the box.

Actual behavior

With #26344, the parent mirrors only requests the remote task blocks on (live response capability). An asynchronous question is dropped at the link, so the parent never shows it. The task keeps working without the answer, so nothing hangs.

Impact

Minor bug or occasional failure

Version or commit

PR #26344 @ 3af86a4

Environment

Linux, two T3 Code servers linked over Linked environments, Codex on the box.

Workaround

Open the remote environment and answer the question there.