Data story

Turn a CSV or Excel file into a one-page data report whose headline is the conclusion and where every figure states its denominator, window and filter. The agent profiles the table, then writes report.json: the decision the report serves, figures defined as computations (count, sum, mean, median, share, change; filters, date windows, groups, day/week/month levels), up to three charts, a next step and what the data cannot answer. scripts/report_check.py refuses typed numbers in the prose, shares without a denominator, changes without two periods, a missing decision and data not matching its pinned sha256; scripts/render.py recomputes every number from the file into one HTM…