Data source: Spansh extra routers & finders (RtR, exobio, tourist, body/station/market search) #98

Part of the Phase 1 backlog (#87). Milestone: Phase 4 — Market & routes.

Source: Spansh — extra routers & finders (spansh.co.uk)

We already use Spansh for neutron, no-boost galaxy, and fleet-carrier routing
(EliteDangerous.Spansh + Core/Routes). Spansh exposes several more routers and search endpoints we
don't touch yet.

Data / endpoints most useful

• Road to Riches router — highest-value exploration bodies along a route (mapping payouts). Already
  noted as deferred.
• Exobiology router — best exobio systems along a route (feeds Phase 5 / Odyssey exobio).
• Tourist router — multi-stop routing through a set of target systems.
• Ammonia / Earth-like / body search — find bodies by type/characteristics (exploration targets).
• Station search — nearest station with a service (large pad, shipyard, outfitting, material
  trader, interstellar factors) — powers "where's the nearest X" answers.
• Galaxy / market search — commodity buy/sell search across the galaxy (Trade Finder could query
  Spansh instead of only the local snapshot).

Why

Each is a small addition on top of the submit-then-poll runner already in SpanshClient
(PlotRouteAsync / PlotGalaxyRouteAsync / PlotFleetCarrierRouteAsync), and each answers a common
"where do I go for X" question the app can't yet.

Sketch

• Extend EliteDangerous.Spansh with the additional query types (RtR, exobio, tourist, body/station/
  market search), reusing the existing job runner and cache pattern.
• Surface via existing cards where natural (Route modes, Trade Finder "search galaxy") and a new
  "nearest service" lookup.

Notes

• Road-to-Riches and exobio routers were explicitly deferred earlier — this ticket is where they land,
  alongside the search endpoints.

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