Added a leaderboard view to the intel section. The Leaderboard component fetches and displays player rankings from the API, showing net worth and other stats for top players.

Created saveTradeData to persist detailed trade information for analytics. Trade records now include more context about the route and profitability. Added ITradeRouteData type for structured trade route information.

Implemented shipCache for caching ship data in localStorage, reducing API calls when ship information is needed. The travel machine now updates the cache when ships complete flights.

Added a Trades component tab for viewing saved trade data with filtering options.