- New scripts/quantize_nvfp4.py: runs full ModelOpt pipeline in-process - Saves calibrated state after calibration (insurance against export crashes) - Patches modelopt for V4: ModuleList quantizers, stale GPU tensor safety - --export-only flag to retry export from saved calibration state - Removed old model_opt_nvfp4_full.py (shell wrapper) - Updated README with new pipeline docs and bug #5/#6