detectSlowdownTempExceedance scans steady-state metric rows per GPU and emits a [WARNING] note + PARTIAL status if any sample >= SlowdownTempC. Uses per-GPU threshold from nvidia-smi -q, fallback 80°C. Distinct from p95-based TempHeadroomC check: catches even a single spike above the slowdown threshold that would be smoothed out in aggregates. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>