graph2table on ChartX: extracted tables and sample identifiers

Extracted chart-to-table outputs from graph2table for the ChartX benchmark,released so that every figure in the accompanying technical report can beindependently recomputed.Covers the official ChartX test split (1,152 charts, 18 chart types) and theOneChart ChartX-SE variant (2,360 charts, 5 chart types). Each split isprovided twice: as extracted, and label-neutralized. Sample identifiers areincluded for both. Scoring uses SCRM, the metric and scorer released with ChartX, unmodified. Noadditional software is required to reproduce the reported numbers; the recipeis in the included README. Label neutralization addresses ground-truth label text that is absent from therendered image. Units in headers, full dates where an abbreviated one isprinted. The same transform is applied to ground truth and prediction alike,so no system is advantaged. Both forms are provided so the transform can berecovered by diffing them.Ground-truth fields are derived from the ChartX benchmark and remain under theterms of that release; the CC BY 4.0 grant applies to the graph2table outputs.No benchmark images are redistributed.