Wego Flights API
The flight funnel: `createFlightSearch` starts an async search, `getFlightSearchResults` reads ranked snapshots while providers answer, `getFlightTrip` opens one trip with every fare. Fares with `kind: "wego"` continue into `getFareOptions` and `getFareBookingLink`; airline and partner fares carry their own handoff URL instead. Ids expire; a `404` means search again. `getFlightSchedules` sits outside the funnel – a published timetable with no prices and no search to settle.