Economy bots that find their way on Felucca

The economy simulation (#127) runs the bots on the baked world from Aquais. They now give up walks the server can't route and pick walkable exploration goals, but: haulers found no run in six game hours (the nearest towns are 450–1 000 tiles from Aquais and they only know markets they visited), gatherers search 40 tiles around them (inside Aquais' walls that is often nothing), and colonists' first sale came 2.5–5 game hours after landing.

• Haulers: plan runs from public prices of towns along the guarded highways.
• Gatherers: head out of town towards known resource areas (atlas deposits, forests) first.
• Hunters die in a loop (dozens of deaths per bot in a day): they are raised with a quarter of their hits and go back for the animals that killed them.
• Raiders broke a vault once in a day and plundered nothing.
• The first-sale time is the onboarding number to watch (npcs-onboarding work): measure it again with the guided start.

Done when 40 bots on the baked world show every role trading within the first game hour.