Merge pull request #32 from need-singularity/revert/harness-vd1-void

Revert #31 VD1 — 재작업 진행

Author: dancinlife

shared/config/core-lockdown.json

@@ -0,0 +1,8 @@
+{
+  "_meta": {
+    "status": "DEPRECATED",
+    "note": "SSOT moved to shared/lockdown/lockdown.json. This file is a compat stub.",
+    "ssot": "shared/lockdown/lockdown.json",
+    "deprecated_since": "2026-04-12"
+  }
+}