Add governed buildings register snapshot

backend/README.md

@@ -1132,6 +1132,28 @@ transport region. Every annual source ZIP and crop code list remains under the
 storage volume. PostGIS computes exact hectares for drawn rectangles and
 persisted Areas; parcel identities are deliberately unavailable for lineage.
 
+## Buildings and Addresses Register snapshot
+
+After the Mol Area and regional GRB buildings have been provisioned, prepare
+the official register evidence with:
+
+```bash
+docker exec geointel python /app/scripts/provision_buildings_addresses_register.py --fetch-only
+```
+
+Review the generated manifest and then persist through DatasetService:
+
+```bash
+docker exec geointel python /app/scripts/provision_buildings_addresses_register.py
+```
+
+The resulting `building_registry` Dataset uses ordinary EPSG:4326
+`vector_features`; no register-specific table or direct operator database write
+exists. Exact PostGIS selection exposes footprint hectares, lifecycle counts,
+aggregate unit/address counts and GRB reconciliation counts. Raw address pages
+are checksummed storage evidence only. Address labels and house/box numbers are
+not copied into queryable properties.
+
 ## Helpful repository scripts
 
 - `bash scripts/backend_install.sh`