FIX: patch DA3 export/__init__.py to skip pycolmap/gsplat deps

FIX: add moviepy dep required by DA3 export utils

DEBUG: show real DA3 import error in GPU worker

FIX: add DA3 to sys.path inside GPU worker process

FIX: add DA3 src/ to sys.path instead of pip install

FIX: revert to Gradio SDK (ZeroGPU requires it), install DA3 with --no-build-isolation

FIX: switch to Docker SDK for reliable DA3 installation

FIX: patch pyproject.toml not setup.py for DA3

FIX: clone DA3 and patch python_requires before installing

FIX: install DepthAnything3 at runtime with --no-deps

ADD: ConceptPose demo Space with ZeroGPU support