test(runtime-chat): give the refused admission 30 s instead of 1 s

[Lstarsky0]

What and why

runtime_chat_relay::tests::active_participant_rejects_new_and_exact_replay_without_blocking_or_starting failed on windows-latest on main at a8e3281:

• https://github.com/codewhale-hq/Codewhale/actions/runs/38528939245/job/115736029754

Runtime Chat admission must not deadlock behind the UI-owned writer: Elapsed(())

The test gives each apply_prompt call 1 s to come back with "active local provider work". Before it refuses, apply_prompt creates the native thread, writes the binding and a turn reservation to disk with write_atomic, and then writes the reservation's release. On windows-latest the whole test usually takes 0.2-0.4 s, but in 5 of 18 passing runs since 10-13 it took 1.1-3.8 s (it passed in 3.76 s on https://github.com/codewhale-hq/Codewhale/actions/runs/38433637142, for example), so the 1 s bound has very little room left.

The refusal itself never waits: try_ensure_inference_ownership only tries to take the lease. The bound is there to catch a deadlock, and 30 s still does. That is the same 30 s bound the subagent approval tests use for the same kind of check (#6966).

Issue

No-Issue: Windows CI flake, no issue filed for it

How I tested it

• CPU load alone doesn't reproduce it here: 0 of 80 runs failed next to 60 busy loops, each run about 0.1 s. Slow syncs do. I put the test's temp dir on an external disk and kept six processes rewriting a 32 MB file there with F_FULLFSYNC, so the test's own syncs wait behind them. With the 1 s bound, 22 of 43 runs failed with the Elapsed(()) above (the test took 2.1-6.3 s). With 30 s, none of 101 runs failed (2.6-4.0 s). On an idle machine both pass in about 0.1 s.
• cargo fmt --all -- --check, cargo clippy -p codewhale-tui --all-targets --all-features with CI's flags, and cargo check -p codewhale-tui --all-targets: clean. Clippy also on 1.99, plus cargo +1.89.0 check -p codewhale-tui.
• cargo nextest run -p codewhale-tui --lib: 15304 passed, none failed.

No new tests; this changes one bound in an existing one.

Checklist

• One focused change, on 88b4c58; it merges cleanly into current main
• cargo fmt --all passes, and tests cover new or changed behavior
• If this adds or changes a user-facing feature, I updated its docs and its row in docs/features.toml (cargo test -p codewhale-tui --test feature_registry checks it) — n/a

[claude]

Claude Code Review

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[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-15T04:25:14.519305Z	6276fed	PR opened

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