ledger: directory census of wizard-work/ledger (extract lane)

CHECK-ledger-dir-census

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+# CHECK -- ledger dir census (forge: extract lane). Exit 0 iff committed
+# wizard-work/ledger/2026-10-30-ledger-dir-census.csv matches a fresh
+# re-derivation from the live filesystem.
+set -u
+cd "$(dirname "${BASH_SOURCE[0]}")" || exit 1
+REPO_ROOT="$(pwd)"
+cd "$REPO_ROOT" || exit 1
+exec python3 wizard-work/ledger/verify_ledger_dir_census.py