Refugee center adds food you sell/give them to their camp storage

[RenechCDDA]

Summary

None

Purpose of change

Further work towards enabling the refugee center storyline.

Describe the solution

Talk function so that food you sell/transfer to Smokes is added to the larder. Right now it's just been added to Smokes, but it's generic and json so it can be added to anyone. Probably most shopkeepers should get this once NPC factions aren't magicking their food out of thin air.

Describe alternatives you've considered

It might be better to make an alternate route to add these items directly to the larder instead of still using zones. Still, using the existing infrastructure isn't a terrible idea, and I think I've guarded responsibly against any possible serious errors (i.e. infinite NPC zones which are never deleted)

While troubleshooting some errors I discovered distribute_items_to_npc_zones(). Maybe I should just hijack that, instead of reinventing the wheel (but that means placing the zones during mapgen, which means old saves are SOL once we turn the food lever on)

Testing

2024-09-01.07-59-25.mp4

Additional context

[Maleclypse]

So refugee camp uses it's calorie larder now or it needs an amount they gain per day vs the amount they lose so that they are slowly starving to death unless specific things happen like 1. player sells them tons of food every month. 2. The amount they generate per day increases from certain activities like setting up the bakery or tacoma ranch? Eventually with fully maxed tacoma maybe they are now food indepent?

[RenechCDDA]

No they still don't consume from the larder, but things are being added to it. Food can go in, but food is never actually taken out, even when they eat meals 'from it' (the food just appears for free, as before).