DXHunter's header row, ported: Watchlist / Active / Needed counts up front and
the All-Modes select beside the other filters (DIGI matches the digital class,
SSB folds USB/LSB). Counters, card lists and the Active/Needed-only filters all
read the same mode-filtered view, so the numbers add up to what is on screen.
And the notify alert now asks the SAME worked-slot question the tab asks —
before making a sound. It used to fire on the raw spot while the tab's verdict
arrived on a debounce, so the bell rang for a slot that showed Worked a moment
later. Judged in the backend at emit time: exact slot for named modes, digital
class for generic DATA, today-only for contest entries.