Add regional flood hazard provisioning

CHANGELOG.md

@@ -7,6 +7,22 @@
 
 # Changelog
 
+## Sprint 211 Regional VMM flood-hazard provisioning support (2026-07-16)
+
+- Added `provision_regional_flood_hazards.py`, an explicit operator for the
+  approved 28-municipality Kempen scope that provisions official VMM
+  flood-depth scenarios per municipality Area through the existing canonical
+  flood-hazard API.
+- Kept persistence inside the existing Dataset/DatasetVersion/Job raster flow;
+  no direct PostGIS writes, no browser-side provider fetches, no startup fetches
+  and no new schema/API contract were introduced.
+- Added dry-run, member/product subset, resume/reuse and failure-reporting
+  controls so operators can validate Mol or selected municipalities before the
+  full 336 municipality/scenario matrix.
+- Updated Unraid packaging, readiness checks, tests and docs. The semantic
+  limitation remains explicit: VMM water depth is modeled scenario depth, not
+  permanent water volume, current water level or bathymetry.
+
 ## Sprint 210 Regional BWK/Natura 2000 expansion (2026-07-16)
 
 - Added an explicit 28-municipality operator for the official INBO BWK/Natura