Document full 7200-video corpus and known audit exception

HF_UPLOAD_NOTES.md

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+# LabOS simulated vortexing training corpus
+
+This repository contains the complete 300-scenes-per-category corpus: 2,400
+scenes and 7,200 H.264 videos at 1920×1200 and 30 FPS. The eight categories are
+success, vortex_off, tube_empty, cap_open, tube_drop, wrong_orientation,
+wrong_rack, and rack_flipped.
+
+Every scene has three synchronized camera views (`left`, `front`, `right`),
+matching per-video JSON sidecars, scene metadata, a shared physical-state trace,
+and QA contact sheets. `manifest.jsonl` uses paths relative to the repository
+root. All views of a scene should stay together when making train/evaluation
+splits. These are synthetic, operator-free videos generated with Isaac Sim.
+
+Scene IDs 0–99 per category preserve the earlier corpus, while IDs 100–299 are
+newly generated with disjoint random seeds. The extension passed its configured
+validation checks. This is not a claim of exhaustive visual certification.
+
+Known inherited quality exception: `rack_flipped/scene_000070` finishes with a
+rack tilt of 71.61°, below the ≥80° final-audit criterion. It remains included
+and flagged in `inheritance.json`, `extension_audit.json`, and
+`final_integrity_audit.json`; the full dataset's quality flag is therefore false.
+All newly generated rack-flip scenes met the stricter tilt criterion.
+
+An upload is complete only after `HF_UPLOAD_VERIFIED.json` is present and
+reports matching remote payload hashes. Until then, repository contents may be
+partial. This upload does not change the older `labos-sim/sim` repository.