b512583ee7
Node's setTimeout can fire a millisecond or two early under CI load, causing the existing `>= 500ms` lower bound to flake (saw 499ms in CI). Loosen to `>= 450ms` — the behaviour being pinned is "stop honors the deadline instead of waiting for the hung handler indefinitely", not millisecond-precise timing. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>