Upload folder using huggingface_hub (part 957)

.gitattributes

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+ "session_id": "20261022_040126_session38",
+ "primitive": "LH08",
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+ },
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+  "family": "long_horizon_composite",
+  "primitive": "LH08",
+  "source_session": "20261022/LH08/20261022_040126_session38"
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