Document regional DOV soil rollout

2026-07-16 11:58:00 +02:00
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+## Sprint 217 Regional DOV soil coverage (2026-07-16)
+
+Changed:
+- Generalized the explicit DOV `bodemkaart:bodemtypes` operator from Mol to the
+  approved 28-member Kempen scope without changing source or persistence
+  semantics.
+- Added independently reusable municipality partitions, deterministic gzip raw
+  responses, boundary/output checksums, unique NIS-suffixed persisted ids and
+  one regional snapshot manifest.
+- Packaged and release-checked the operator in the all-in-one image.
+- Kept regional and municipality metric queries on exact PostGIS intersections
+  instead of asserting a preclipped fast path across CRS round trips.
+
+Validation evidence:
+- The live operator completed 28/28 partitions, 62 WFS responses, 46,134
+  bounded source features and 27,200 persisted valid EPSG:4326 polygons.
+- PostGIS found zero invalid/empty/wrong-SRID geometries, zero duplicate source
+  ids, complete municipality/NIS identity and 139,871.44 ha mapped area.
+- A strict storage-boundary audit measured only 355.15 m2 of coordinate-rounding
+  slivers across 579 boundary features (about 0.000025%); exact selection
+  intersections prevent those slivers from bypassing the selected Area.
+- A repeat operator run reused every verified partition and the existing
+  Dataset.
+- Browser validation showed Bodem available for the complete Kempen and for
+  Arendonk, returned 139,871.44 ha and 5,514.99 ha respectively, rendered the
+  MapLibre layer at detail zoom and produced no browser warnings or errors.
+- The pre-deployment readiness gate passed 738 backend tests, compilation,
+  contract checks, one Alembic head, frontend typecheck and production build.
+
+Next:
+- Fill the remaining region-wide current-state gaps shown in the Map workspace:
+  VMM flood-hazard coverage and DHMV terrain. Preserve their separate modeled
+  scenario and elevation semantics; do not infer current water volume.
+
 ## Sprint 216 Regional thematic coverage (2026-07-16)

 Changed: