real 8xH100 voice envelope: whisper-large-v3, 584W avg / 681W peak, WER 7%

supersede with telemetry-enriched envelope (1cd8f74bac26)

re-run with real NVML telemetry: 11.5W avg, 40.5W peak, 32.3 J/s audio

first real-audio voice envelope: whisper-large-v3 on RTX 4000 Ada Laptop, WER mean 7%

initial commit