Add bounded Flanders thematic analysis

docs/DATA_SOURCES.md

@@ -73,6 +73,14 @@ publicly accessible land. Population is a 2019 raster estimate, not a current
 register count. Accessibility and service scores are not live travel times or
 object counts.
 
+In `Flanders Regional Workbench` these five products are shown as
+`Op aanvraag` until a user chooses a municipality or draws a bounded
+rectangle. One selection acquires, persists and analyses the five products
+through the canonical backend. Repeating the exact same product, bounds and
+Area reuses the retained source evidence. GeoIntel does not preload 1,425
+municipality/product combinations and does not permit one unbounded
+whole-Flanders WCS transfer.
+
 ## DOV digital soil map
 
 - Service: `https://www.dov.vlaanderen.be/geoserver/wfs`
@@ -704,11 +712,12 @@ provider output continues to use DatasetService and, for vectors,
 VectorFeatureService. Arbitrary service URLs, browser-side fetches and startup
 downloads remain forbidden.
 
-The recommended next connector is a fixed allowlist of public Mercator
-thematic rasters for space occupation, open space, population density, node
-value and service level. The digital soil map should follow the existing
-canonical vector persistence path. Watercourse/runoff additions remain in the
-roadmap but no longer precede these cross-domain gaps.
+The fixed allowlist of public Mercator thematic rasters for space occupation,
+open space, population density, node value and service level is operational
+for bounded Mol, Kempen and Flanders selections. The digital soil map follows
+the canonical vector persistence path for Mol and Kempen. Additional Flemish
+vector themes still require governed regional operators; a catalogue record
+alone never makes them operational.
 
 ## Bathymetry, inland profiles and maritime scope