Adds Stats.ByBandCategory (per band: CW/phone/data counts, band-plan order) via a
modeCategory() bucketing in stats.go, and a StackedBandBars chart in the Stats
panel showing the split per band with a legend.
New Operator picker next to the contest picker, populated with the operators
actually present in the log. Selecting one recomputes every statistic for that
operator — QSO/DXCC totals, top countries, continent split, by band/mode, and
the rate/best-60. "— Station owner —" buckets QSOs logged with no OPERATOR set.
Shown only when the log has more than one operator.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
rouggy
