Introduce dashboardVisual.ts with moneyTone, formatDashboardCurrency,
eventTypeTone, incomeTypeTone, and instrumentDisplay helpers used by
the broker dashboard to match the HTML reference prototype.
Extend dashboardIncome.ts: typeLabel now distinguishes DIV_EXT
('Дивиденд (внешний)'), and rows expose instrumentMain/instrumentSubtitle
via instrumentDisplay while keeping instrument as a derived alias for
existing callers.
Add resetDashboardFilters factory in dashboardFilters.ts so Task 3 can
wire the reset action without re-churning filter types.
Sergey Krylov
af0aaeda9d