Add connection-type MCT, overnight/short-connection warnings

Add flight booking flow with payment validation

Fix local-time display bug, add Asia departure patterns, popularity extension

Add realistic departure time distributions by route type

Add flight amenities: legroom, WiFi, power/USB, video per segment

Add Google Flights-style "Best/Other" sections, emissions, rich detail view

Fix time+1 wrapping, add airline discount pricing, document fare engine

Fix 500 error on routes with empty carriers, align flight results grid

Add flight booking website (Google Flights clone)