revert: disable NeAR main-process preload; restore torchvision weights=...

fix: enable NeAR CPU preload by bypassing torchvision weights CUDA init

fix(spaces): Hdri torch.load after ConvNeXt; default off CPU preload with spaces

fix(load): CPU-only checkpoint load for ZeroGPU main process

restore: full Space tree + assets (recover from minimal force-push); keep ZeroGPU app.py