feat: setup dataset enrichment app codebase and scripts

requirements.txt

@@ -0,0 +1,20 @@
+torch
+torchvision
+fastapi
+uvicorn[standard]
+python-multipart
+pydantic>=2
+python-dotenv
+opencv-python-headless
+pillow
+numpy<2
+huggingface_hub
+iopath
+ultralytics
+
+# SAM3 vendor deps that its pyproject doesn't declare
+einops
+pycocotools
+
+# sam3/model_builder.py still imports pkg_resources, which setuptools 81+ dropped
+setuptools<81