onnxruntime

41b9ce45 - Improve build_wheel.py: use temp dir, explicit copies, hard error on version stamp

Improve build_wheel.py: use temp dir, explicit copies, hard error on version stamp - Build wheel in a temporary directory instead of mutating the source tree - Copy only the files needed (pyproject.toml, setup.py, onnxruntime_ep_webgpu/) instead of using an exclude list - Change version placeholder to VERSION_PLACEHOLDER and fail hard if not found - Disable CPU EP fallback in test to ensure WebGPU EP runs the model - Simplify docstring and README descriptions