System monitor machine, last profit per ship, ship state fixes
Background monitoring moved into its own machine, along with a batch of fixes for stale ship state.
Added 1
- Last trade profit tracked per ship
Changed 3
- Background system monitor machine
- Cached vs fresh requests shown in ship log
- Old trade component removed
Fixed 4
- Completed flight plans not expiring
- Stale ship locations
- Ships with no flight plan or location
- Trade route and buy/upgrade edge cases