/* Chart and data, one figure. * * A research table that compares builds opens as a picture and keeps the table one tab away. The two are the same * figure, so they sit in one [data-tabs] group (tabs.js, the contract /platform/ already uses) and the reader picks. * The picture is first because a column of 10 estimates with 95% ranges is something to look at before it is * something to read; the table is the record and stays whole, byte for byte, in the Data tab. * * THE DATUM IS IN THE MARKUP. A bar or a dot is placed by custom properties written on its element (--v, --lo, --hi), * the way the eval cards write a bar's width: the page says the same thing with no script, and a test * (test/research-chart-data.test.mjs) reads those properties back against the table beside them, so the picture * cannot drift from the numbers. Nothing here computes a position in script; the calc()s below are the whole of it. * * NO SCRIPT, NO TABS. Without JavaScript the tab bar does nothing, so the page head carries a