feat: add official modern Mol land-use series

backend/README.md

@@ -947,12 +947,15 @@ snapshots explicitly:
 ```bash
 docker exec geointel python /app/scripts/provision_mol_population_history.py
 docker exec geointel python /app/scripts/provision_mol_historical_landuse.py
+docker exec geointel python /app/scripts/provision_official_landuse_timeseries.py
 ```
 
 The first command imports Statbel sector population for 2021-2025. The second
-imports Digitaal Vlaanderen historical land use for 1778, 1873 and 1969. Both
-are idempotent, use the normal API/DatasetService flow and retain fetched
-artifacts in persistent operator storage. They never run on app startup.
+imports Digitaal Vlaanderen historical land use for 1778, 1873 and 1969. The
+third imports the Departement Omgeving 10 m forest class for 2013, 2016, 2019,
+2022 and 2025. All commands are idempotent, use the normal
+API/DatasetService flow and retain fetched artifacts in persistent operator
+storage. They never run on app startup.
 
 Historical land-use work can be bounded explicitly:
 
@@ -964,6 +967,9 @@ docker exec geointel python /app/scripts/provision_mol_historical_landuse.py --y
 `POST /api/v1/projects/{project_id}/temporal/compare` compares two snapshots
 inside one EPSG:4326 bbox. Partial statistical sectors are estimates; old map
 editions without stable identities do not produce invented object changes.
+Modern raster-derived forest polygons have the same identity limitation. Their
+area is measured in EPSG:31370 and is exact within the 10 m source
+representation, not a cadastral forest survey.
 
 ## Helpful repository scripts