"What changed since your last panel" rounded every delta to two
decimals, so TSH 0.004 to 0.009 read "no change", and it printed values
and deltas through `String()`: a full stop in every language and every
digit of a unit conversion (41.999198717948715 ng/mL).
The summary now reads each reading at the precision it was recorded at
(`recordedPrecision`, with the report's printed figure for a converted
value, which the route now selects) and rounds the delta to the finer
of the two, so its direction agrees with the printed figures. The card
prints both through `useLabNumber()`. 5.9 - 5.6 still comes out as 0.3,
so the existing marker-pairing test stands as it was.
Marc-André Bombeck
2c7a0dc3c2