Update to 2026-09-17 pipeline snapshot; add weights, L20 assets and recording via Git LFS

Source: RGB-D -> Dyn-HaMR -> L20 retargeting -> FoundationPose -> reference repair -> SPIDER,
documented in docs/PIPELINE_LATEST.md and docs/SETUP_AND_WEIGHTS.md. Adds FoundationPose and
nvdiffrast upstream snapshots, requirements/pipeline_venv.txt and the FoundationPose weight
manifest/downloader.

Assets (Git LFS): weights/ (WiLoR detector, HandFlow denoiser, UniDepth-L), FoundationPose
checkpoints, HaMeR checkpoint, Dyn-HaMR HMP model and BMC constraints, L20 URDF/meshes, the
20260915_171525 D405 recording and the two box CADs. MANO models are not redistributed
(third_party/hamer/_DATA/data/mano/README.txt). Environments, caches and run outputs excluded.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

third_party/bottle_model_parametric/validation.json

@@ -0,0 +1,17 @@
+{
+  "height_mm": 157.856,
+  "max_diameter_mm": 54.11,
+  "neck_diameter_mm": 28.0,
+  "watertight": true,
+  "winding_consistent": true,
+  "volume_m3": 0.000297608913283581,
+  "mujoco_load_passed": true,
+  "collision_parts": 3,
+  "extent_m": [
+    0.05411,
+    0.05411,
+    0.157856
+  ],
+  "shape_source": "Idealized cylinder body, tapered shoulder, cylinder neck; only height and maximum diameter inherited",
+  "mass_source": "Previous XML mass 0.2308 kg retained; uniform solid inertia recomputed, not measured"
+}