7907fac64e
xai/grok-4.3 jobs in the models-live matrix land at 42-67s wall time vs 23-41s for every other provider, brushing the 60s ceiling and crossing it intermittently (e.g. xai/grok-code-fast in run 25949844470 timed out at 60s with `OK` already in stdout — model replied, harness just hadn't seen close). 120s gives ~2x headroom on the slowest provider without penalizing the fast-path providers, since the timer only fires on actual hangs.