chore(MAD-223): force unbuffered prints in calibrate_ml8.py

Python's stdout is block-buffered when not attached to a TTY (e.g.
nohup'd to a file, run under timeout, etc), which hides per-layer
progress on long runs. Override print with flush=True so live
tail -f works during multi-hour calibrations.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: kmbandy

scripts/calibration/calibrate_ml8.py

@@ -38,13 +38,17 @@
 from __future__ import annotations
 
 import argparse
+import functools
 import json
 import math
 import os
 import sys
 import time
 from pathlib import Path
 
+# Force unbuffered prints so live `tail -f` works on long runs piped to file.
+print = functools.partial(print, flush=True)  # noqa: A001 (deliberate shadow)
+
 import torch
 from torch import nn
 from transformers import AutoModelForCausalLM, AutoTokenizer