Fix engage conditions in Apocalypse Nigh

Shout out to Tantalus for testing this fight and providing notes!

Ealdnarche_Apoc_Nigh's had some default "hume" family set, which gave him a mobmod increasing his "see" distance from the default 15 to 30.

In Apoc Nigh you spawn 24 yalms away from him, so he sees you and starts the fight as soon as you're in.

Renamed Kam's family to 'Zilart' and applied that to Ealdnarche.

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[x] that I've tested my code since the last commit in the PR, and will test after any later commits

project-topaz / topaz