Tests 1, 4, 5 constructed an Adapter with the default
statusInterval=1000 and no mock for setInterval, leaking a real
status timer that held the event loop open past the assertions.
Single-file runs masked it; node --test test/basic/ blocked the
whole runner.
Fix: set static statusInterval = 0 + invoke node.handlers.close()
(or mock setInterval where the test asserts on registration timing).
113/113 basic tests pass in batch in ~400 ms.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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