Ships carry fuel: a leg burns from the tank at departure (no credits),
dispatch needs the fuel on board (not-enough-fuel), a leg's fuel cost
is fuel burned x the tank's average price, and Auto top-up refills on
landing with what the credits cover. The save gains tank fields (save
version 2, migration fills every tank). Market ships arrive full; the
deal's ships come with a quarter tank to keep the balance targets.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Positions, distances, range checks, trip times, fuel and the no-strand
rule no longer take a time argument; the 48-hour no-strand margin goes
with it. Tests now check that a route's pay, trip time and fuel are the
same whenever it is offered or flown.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
fireshaper