[Bug]: iOS thread list shows a thread waiting on subagents as idle #16464

Before submitting

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

Area

apps/mobile (iOS)

Steps to reproduce

1. In a Claude (Opus 5.5) thread, have the agent start background subagents and end its turn while they run.
2. Go back to the thread list.

Expected behavior

The row shows that the thread is still underway, like the grey "Waiting" label in the web sidebar.

Actual behavior

The row shows only its timestamp, the same as a finished, idle thread. Opening the thread shows the "Waiting on…" pill, so the app knows it's waiting.

Impact

From the list you can't tell a thread that's still working through subagents from one that's done.

Version or commit

iOS app 2.0.0 (109). Source checked on main at 68e50db.

Root cause

• The status is derived correctly. shellRuntime parks a thread at idle when subagents hold its completion (packages/client-runtime/src/state/models.ts:176-202). resolveThreadListV2Status then maps that to "waiting" (apps/mobile/src/features/threads/threadListV2.ts:200).
• But STATUS_LABEL_BY_STATUS (apps/mobile/src/features/threads/thread-list-v2-items.tsx:65) has no waiting entry. The row falls back to the timestamp at line 968.
• The comment at threadListV2.ts:73 says waiting should read "grey like working rather than a false Done", so the renderer is missing, not deliberately left out.
• Web handles it with a grey "Waiting" label (apps/web/src/components/Sidebar.tsx:1268).

Suggested fix

Render waiting on mobile. The minimal version adds a waiting entry to STATUS_LABEL_BY_STATUS that matches web. Open PR #16213 goes further and names what the thread waits on ("Waiting on 2 subagents"). It covers this and is mergeable.

Related: PR #15413 and discussion #15433 cover the wider question of which background work should keep a thread in the Working section. This bug is narrower: with the Working section off (the default), a waiting thread has no visible status on mobile at all.

Workaround

Open the thread to see the "Waiting on…" pill.