fix: patch build_model.py cuda calls + torch.load map_location

fix: pin setuptools<81 (detectron2 needs pkg_resources)

fix: import spaces before anything touches CUDA

fix: add @spaces.GPU probe for ZeroGPU, gradio6 theme, lock torch

install detectron2 at runtime with --no-build-isolation

fix: torch 2.10.0 for ZeroGPU

deploy: bodyfat estimation app

setup lfs