feat: synchronize regional official time series

docs/CODEX_EXECUTION_LOG.md

@@ -7960,6 +7960,24 @@ Live operational proof:
 Next:
 - Build bounded, idempotent regional theme ingestion in municipality-sized partitions, starting with current buildings and retaining per-member provenance before exposing any Kempen-wide metric in the explorer.
 
+## Sprint 194 - Regional official time-series operator foundation (2026-07-14)
+
+Implemented:
+- Made the existing Statbel population operator scope-aware while retaining Mol defaults and artifact compatibility.
+- Added approved-scope NIS filtering, per-feature municipality provenance, checksummed scope-boundary resolution and distinct regional temporal-series keys.
+- Added `provision_regional_timeseries.py` as one explicit coordinator for population and modern forest imports into `Kempen Regional Workbench`.
+- Reused the current Dataset upload API and existing forest polygonization path; no migration, public endpoint, direct PostGIS write, startup fetch or fabricated value was added.
+- Corrected regional forest provenance so a 28-member coverage does not claim to be one municipality.
+- Added friendly Statbel/GRB/VRBG/Departement Omgeving labels to the primary map.
+
+Validation before deployment:
+- Source contracts were rechecked against the official Statbel sector-population page and the official 2025 Landgebruik Vlaanderen catalogue.
+- The focused regional/temporal suite passed 19 tests.
+- Frontend TypeScript typecheck and production build passed.
+
+Next:
+- Deploy the packaged operator, execute the live regional synchronization, verify persisted counts and temporal comparisons, then mark the regional time-series TODO complete only if PostGIS and browser evidence agree.
+
 ## Sprint 190 Regional Kempen GRB buildings (2026-07-14)
 
 Implemented:

docs/DATA_SOURCES.md

@@ -148,6 +148,22 @@ presented as one continuous measurement method. Raster-derived polygon
 identities are unstable, so GeoIntel compares hectares and never invents
 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
+`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:forest:kempen-transport-region`, so Mol datasets
+remain independent observations rather than aliases.
+
+The command is explicit and operator-triggered. No source fetch happens during
+startup or map interaction. Partial statistical sectors remain area-weighted
+population estimates; forest hectares remain measurements in the harmonized
+10 m source representation and are not cadastral forest boundaries.
+
 Official catalogues:
 
 - https://www.vlaanderen.be/datavindplaats/catalogus/landgebruik-vlaanderen-toestand-2013