README: link to figures/episode_previews/index.md (per-episode preview picker).

Wave 2: multi-cam migration complete for 2026-05-10 + 2026-05-11. All 32 episodes now ship under episodes/ and segments/ with view_left / view_middle / view_right + tactile_{left,right}. Legacy processed/mode1_v1/ and processed/mode2_v1/ removed.

Publish 2026-05-19 session + introduce multi-cam schema (view_left/middle/right). 5 episodes + segments; bad_frames + tasks + README + schema doc updated. Multi-cam rollout for 2026-05-10/11 still in progress (legacy mode1_v1/mode2_v1 paths remain valid until that wave finishes).

Add mode2_v1 schema — 73 pre-sliced clean segments from 27 source episodes (104.7 min, bad intervals excluded by construction). New ReactSegmentDataset + demo. No bad_frames.json filtering needed at the dataloader; data is constructively clean. mode1_v1 stays for backward compatibility. See segments.json + new README section.

README cleanup: fix stale 75 % bimanual-contact claim (actual 64.3 % post-trim); reference freeze_intervals.json + MP4 previews + metadata/episodes.parquet that previous batches added.

Audit batch 4: per-episode metadata Parquet at `metadata/episodes.parquet` + HF data-files config so the dataset-card viewer renders a sortable table (#13).

Update README + docs/{quality,caveats}.md: post-trim totals, three concrete filtering recipes (example dataloader / direct .pt / pose-only), rewritten OT-track-loss section reflecting the prefix-trim + recorder watchdog fix

Trim OT-uninitialized prefixes from 3 .pt files (ep_005/012/017 — see `_contact_meta.trim_offset`); recompute bad_frames + data_quality_breakdown in trimmed coords; ot_loss frame count now reflects real mid-episode mocap dropout only. Recorder-side OT watchdog added to data_collection.py (in twm repo) so future episodes won't repeat the bug.

Drop 2026-03-23 right-only pilot (outdated); recompute totals across 27 bimanual recordings

Add example dataloader: ReactWindowDataset for short contact-rich window sampling + demo (static grid + GIF) with sensor-frame overlay

Lead with robot-arm-free / human-hand collection — README hero + 'What's different' section, tasks.json gets operator/embodiment fields, recording.md explains setup, F7 adds Operator column

Reframe dataset as dynamics / world-model interaction data (not policy demos); document 2026-03-23 as right-sensor-only pilot; add active_sensors per-date in tasks.json; lead with hours and contact frames instead of episode count

Split README into lean front page + docs/{recording,schema,quality,figures,caveats}.md

README: embed inspection figures inline (intensity overview, teleport reports, data-quality summary)

Add data-quality docs: bad_frames.json, per-mode breakdown, inspection figures; refresh episode GIFs with cam2 projection overlay

Replace per-episode Gantt timelines with intensity waveform figures (full + 20-min)

README: embed dataset figures + statistics gallery

README: update episode count to 30; note dropped 2026-05-11 episodes

Add tasks.json registry; README per-task configs and task-first schema

Add dataset card with schema, quick start, caveats, and roadmap