New guides are generating with every item's price set to INT64_MAX

[Jessidhia]

Example screenshot from Weaponsmith 400-500, but this seems to be happening with all guides of all categories:

Archive link to be sure https://gw2crafts.net/archive/20240927T0300/weaponcraft_400.html

[xanthics]

It looks like the api didn't return unit_price during that update, and I default the values to max_int so things that aren't on the TP don't get chosen to buy. EG the previous and current updates are correct, while nothing has changed with the site code. This deserves some type of enhancement to catch that issue before pushing guides.