From 24cecf2b726c56cdf05bbff10722b39620c5f39f Mon Sep 17 00:00:00 2001
From: kyeongmin <b24009@hanmaceng.co.kr>
Date: Sat, 23 May 2026 19:55:28 +0900
Subject: [PATCH] index on main: c53722a feat(#86): IMP-86 u1~u5 placeholder
 zones_data + invariant guard