Add regional historical land-use operator

docs/DATA_SOURCES.md

@@ -129,7 +129,7 @@ Statistical-sector codes and boundaries can change between editions. GeoIntel
 therefore compares population metrics but does not present sector additions,
 removals or boundary changes as population-object lineage.
 
-### Mol historical land use
+### Historical land use for Mol and the approved region
 
 `scripts/provision_mol_historical_landuse.py` uses the official Digitaal
 Vlaanderen Historical Land Use WFS for the 1778, 1873 and 1969 collections.
@@ -146,6 +146,17 @@ The operator uses standards-compliant WFS 2.0 XML POST requests. This keeps
 the spatial/class filters server-side without exposing a long XML filter in a
 GET query, which the public gateway rejects.
 
+`scripts/provision_regional_historical_landuse.py` extends the building,
+water and road series to the approved 28-municipality transport-region scope.
+Broad regional WFS counts are capped at 10,000 by the public service, so the
+operator uses the retained official VRBG municipality boundaries as 28
+explicit source partitions. Each exact WFS JSON response is retained as a
+deterministically compressed artifact with response and artifact SHA256,
+then clipped to its municipality before one regional snapshot is assembled.
+Partition-suffixed feature ids prevent cross-boundary source polygons from
+colliding. Those ids remain processing evidence and are not historical object
+lineage.
+
 ### Mol modern land use
 
 `scripts/provision_official_landuse_timeseries.py` uses the public Departement
@@ -181,14 +192,18 @@ added/removed forest objects.
 
 ### Regional official time series
 
-`scripts/provision_regional_timeseries.py` applies the same population and
-modern forest operators to the approved 28-municipality
+`scripts/provision_regional_timeseries.py` applies the population, modern
+land-use and partitioned historical land-use operators to the approved 28-municipality
 `kempen-transport-region` scope. It resolves the checksummed VRBG union
 boundary and writes to `Kempen Regional Workbench` through the normal dataset
 API. Regional keys are
 `statbel:population-statistical-sector:kempen-transport-region` and
 `department-omgeving:land-use:{theme}:kempen-transport-region`, so Mol datasets
 remain independent observations rather than aliases.
+Historical buildings, water and roads use
+`digitaal-vlaanderen:historical-landuse:{theme}:kempen-transport-region` and
+remain separate from both current GRB geometry and the harmonized 2013-2025
+land-use rasters.
 
 The command is explicit and operator-triggered. No source fetch happens during
 startup or map interaction. Partial statistical sectors remain area-weighted
@@ -201,6 +216,8 @@ exact regional union clip before polygon persistence.
 
 Official catalogues:
 
+- https://www.vlaanderen.be/datavindplaats/catalogus/wfs-historisch-landgebruik
+- https://www.vlaanderen.be/datavindplaats/catalogus/digitalisatie-historisch-landgebruik-en-landgebruiksveranderingen-in-vlaanderen-1778-2022
 - https://www.vlaanderen.be/datavindplaats/catalogus/landgebruik-vlaanderen-toestand-2013
 - https://www.vlaanderen.be/datavindplaats/catalogus/landgebruik-vlaanderen-toestand-2016
 - https://www.vlaanderen.be/datavindplaats/catalogus/landgebruik-vlaanderen-toestand-2019