gnezim
e694ccf42b
DayGroupedFlightList gains an optional `onBuy` prop that forwards to
ScheduleFlightBody. ScheduleSearchPage implements handleBuy — matches
BoardDetailsHeader.BuyTicketButton: opens
`aeroflot.ru/sb/app/{lang}-{lang}#/search?routes={dep}.{yyyyMMdd}.{arr}`
in a new tab, using the first leg's airportCode + scheduled-departure
UTC for direct and multi-leg flights.
Previously the Buy button rendered but its click was `onBuy?.()` with
no handler wired, so nothing happened. The button text + wiring now
mirror Angular's `buy-ticket-button.component`.