Add Flemish bathymetry partition workflow

docs/DATA_SOURCES.md

@@ -722,7 +722,11 @@ are not filled by fabricated OCR output.
 The following sources are audited but not yet operational:
 
 - MDK Dieptemodel Belgisch Continentaal Plat/Noordzee: 20 x 20 m continuous
-  raster in LAT, exposed through WCS/WMTS.
+  raster in LAT, exposed through WCS/WMTS. GeoIntel now has a strict-TLS,
+  read-only GetCapabilities probe. On 2026-07-17 the official metadata
+  endpoint presented a certificate for another hostname and returned no
+  usable capabilities path; status therefore remains `tls_error` and raster
+  acquisition is disabled.
 - SPW bathymetry of navigable waterways and reservoir lakes: 0.5 m bed
   elevation and XYZ data in mDNG.
 - Port of Antwerp-Bruges periodic soundings: catalog candidate pending a
@@ -732,3 +736,13 @@ See `docs/BATHYMETRY_EXPANSION_ROADMAP.md`. TAW, LAT and mDNG remain separate
 until an authoritative vertical transformation is implemented and tested.
 The territorial sea, EEZ and continental shelf are separate scope layers and
 must be labelled according to their legal meaning.
+
+The official VRBG RefGem collection currently exposes 285 Flemish
+municipalities. `scripts/provision_flanders_geographic_scope.py` validates the
+complete inventory, produces checksum-bound land-boundary artifacts and
+creates one persisted municipality Area per source feature. The separate
+`scripts/provision_flanders_bathymetry_profiles.py` coordinator acquires VHA
+profiles per Area, writes an atomic resumable manifest and requests regional
+activation only after all 285 partitions are accounted for. A municipality
+with zero source points is retained as an explicit no-profile partition, not
+silently omitted.