remove touchandgo: uses ORIGINAL GelSight (white illumination, 640x480 flat-channel R~G~B~137) not Mini. Verified via channel-mean signature mismatch with all other Mini sources (B>G>R with 30+ grey-level spread). Document reason in SOURCES.md 'Investigated but not included'. Bumps real total from 748,024 to 745,958 frames.

docs: add Touch-and-Go (## 12) + TVL (## 13) sections to SOURCES.md; add YAML configs + composition rows for both new sources; tagline updated to ~1.1M frames

docs: SOURCES.md add ## 10 UniT + ## 11 TacQuad sections, update all stale row counts (fota_unlabeled, RTM, sims, feelanyforce, etc), add Channel-order normalization section; README: update header tagline frame count

README: update NC extension blurb to reflect Sparsh-only / 66K frames

v8 final: RTM video re-extract (30,956 peak-contact frames); add Balance metrics section (H̃=0.95 domain, 8,459 unique objects); refresh composition/pies charts + RTM sample grid; publish balance_report.json

v7: I_min=12 (real) + I_min=10 (sim) reprocess of RTM and sims; add pixel_value_distribution chart; fix sim_tactile_mnist test routing; refresh all sample grids and composition charts.

Collapse fota_unlabeled to train-only (66,761 frames; was 516,523). Refresh assets/. Delete obsolete 8-shard and val-* layouts.

README: update totals to ~700K (post-FoTA-dedupe)

README: samples_40 references

README: cross-link to NC extension yxma/gelsight-mini-pretrain-nc

README: add 2 sim subsets, domain column, real/sim breakdown, 1.16M total

README: link SOURCES.md from intro

README: add Statistics at a glance section + link to pipeline scripts

README: add 4 new subsets (gelslam, tactile_tracking, real_tactile_mnist, feelanyforce)

Add 'How this dataset was built' methodology section with sample images

update FEATS frame count after empty-frame removal (22013 → 16711)

document FoTA mixed-gel finding (some captures use markered right finger)

document FEATS two-gel-variant nature; add gel_variant column

rich dataset card with samples and stats

add README