The 5s waitFor deadline trips on loaded CI runners: on 2026-08-31 the same
UI-shard flake hit a plugins-only main push and two unrelated PRs, always as
'expected vi.fn() to be called at least once' in gateway-settings /
messaging / session-unread-tile / toolset-config-panel. Success still
resolves the moment the assertion holds; 12s only absorbs starvation and
stays under the 15s testTimeout so real hangs keep their distinct failure
shape.
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