feat: initialize offline multiview pose tracking experiment

Set up pose_tracking_exp as a uv-managed Python package for offline multiview body tracking experiments.

This initial commit includes:

- the typed package scaffold, CLI entrypoints, and repo-local uv configuration

- scene and replay loaders for generic JSON replays and ActualTest parquet inputs

- ParaJumping payload conversion and RTMPose-to-body20 normalization

- a custom articulated tracker with tentative, active, and lost lifecycle handling

- RPT-backed proposal generation, camera convention handling, and multiview reprojection updates

- regression tests for normalization, camera conventions, ActualTest ingestion, seeding, and tracker smoke flows

- project documentation covering extrinsic formats and the ActualTest calibration caveat

pyproject.toml

@@ -0,0 +1,45 @@
+[build-system]
+requires = ["hatchling>=1.27.0"]
+build-backend = "hatchling.build"
+
+[project]
+name = "pose-tracking-exp"
+version = "0.1.0"
+description = "Offline multiview pose tracking experiment with RPT-backed proposal births"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+  "beartype>=0.19.0",
+  "click>=8.2.1",
+  "jaxtyping>=0.3.2",
+  "numpy>=2.1.0",
+  "opencv-python>=4.12.0.88",
+  "pyarrow>=21.0.0",
+  "rapid-pose-triangulation",
+  "scipy>=1.15.0",
+]
+
+[dependency-groups]
+dev = [
+  "basedpyright>=1.31.0",
+  "pytest>=8.4.0",
+]
+
+[project.scripts]
+pose-tracking-exp = "pose_tracking_exp.cli:main"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/pose_tracking_exp"]
+
+[tool.uv.sources]
+rapid-pose-triangulation = { path = "../RapidPoseTriangulation", editable = true }
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+
+[tool.basedpyright]
+typeCheckingMode = "standard"
+pythonVersion = "3.12"
+include = ["src", "tests"]
+reportAny = false
+reportExplicitAny = false