Short, on purpose: zones have no SpecProc table. There is no @zone proc, no @proc zone, and no dg-style zone script block in Neo-Nilgiri.
Hub: Script Law. Building resets: Creation Law — Zones.
A zone only places rooms, mobiles, and items on reset (and manages lifespan/weather). Scripted behavior is attached to those entities:
@save zone then zone reset so scripted instances load
If a scripted mob “does nothing” after a zone edit, check attach+save on the npc, then confirm zone reset loaded a fresh instance — the zone file will never hold the Beanshell text.