update sensor bench

run.py

@@ -1,15 +1,22 @@
 #!/usr/bin/env python3
-"""Launch Sensor Bench without installing the package.
+"""Launch the public Sensor Bench exhibition app without installing the package.
 
 Usage (from the repository root):
     python run.py
+
+Private operator UI:
+    python internal/run_operator.py
 """
 
 from __future__ import annotations
 
+import os
 import sys
 from pathlib import Path
 
+# Must be set before importing OpenCV / sensor_bench modules that import cv2.
+os.environ.setdefault("OPENCV_VIDEOIO_MSMF_ENABLE_HW_TRANSFORMS", "0")
+
 ROOT = Path(__file__).resolve().parent
 SRC = ROOT / "src"
 if str(SRC) not in sys.path: