Complete live Mol register validation

CHANGELOG.md

@@ -26,6 +26,9 @@
   matching Mol Area and retain regional GRB coverage everywhere else.
 - Added source-inventory presentation, runtime packaging and focused operator,
   privacy, reconciliation, metric and UI tests.
+- Live Mol validation retained 43,945 exact building polygons, 30,382 units
+  and 21,388 unambiguous address relations. It found a 98.45% realized-building
+  GRB match rate, zero invalid geometries and zero prohibited address fields.
 
 ## Sprint 205 Governed agricultural-use parcel history (2026-07-15)
 

backend/tests/test_sprint206_buildings_addresses_register.py

@@ -187,6 +187,13 @@ def test_buildings_are_clipped_in_lambert72_and_keep_lifecycle_status() -> None:
     assert record["area_ha"] > 0
 
 
+def test_area_evidence_paths_are_isolated_per_municipality() -> None:
+    module = load_operator()
+
+    assert module.area_storage_key("Gemeente Mol - officiële grens") == "mol"
+    assert module.area_storage_key("Gemeente Geel - officiële grens") == "geel"
+
+
 def test_official_unit_relation_and_exact_address_position_are_aggregated_without_labels() -> None:
     module = load_operator()
     _, boundary_lambert72, polygon, buildings, _ = normalized_fixture(module)

docs/CODEX_EXECUTION_LOG.md

@@ -8613,3 +8613,74 @@ Next:
 - Implement P3 Buildings and Addresses Register through a governed snapshot
   operator, preserving register lifecycle semantics separately from GRB
   footprint geometry and excluding personal data.
+
+## Sprint 206 - Governed Buildings and Addresses Register snapshot (2026-07-15)
+
+Implemented:
+- Added `scripts/provision_buildings_addresses_register.py` for the official
+  Digitaal Vlaanderen `Gebouw`, `Gebouweenheid` and `Adres` OGC API Features
+  collections. It retains raw pages and SHA256 checksums, uses retries and
+  limits, clips exactly in EPSG:31370 and persists only through DatasetService.
+- Added service-window-safe pagination. Live audit proved that the address
+  collection omitted `next` after 52,000 bbox rows while offset 52,000 still
+  returned data. The first incomplete snapshot was rejected and transactionally
+  removed; the corrected operator continued with `startIndex` to a short final
+  page at 52,110 rows.
+- Kept building lifecycle status separate from GRB footprint evidence. Official
+  building-unit relations use `GebouwObjectId`; address relations are accepted
+  only for an exact unambiguous unit position or unambiguous building
+  containment. Ambiguous and unmatched relations remain diagnostics.
+- Persisted building polygons with aggregate relation counts only. Full address,
+  street, house-number and box-number fields remain in restricted raw operator
+  evidence and never enter queryable feature properties.
+- Added exact footprint, lifecycle, unit, address-status and GRB-match metrics.
+  Fixed filtered `feature_count` execution without changing the existing
+  unfiltered count contract.
+- Added Map and Sources presentation. The exact Mol Area prefers the register;
+  another municipality and the full Kempen scope retain complete regional GRB.
+  Evidence paths and manifest reuse are isolated by Area key and boundary hash.
+
+Live evidence:
+- Source bbox acquisition completed with 111,696 buildings (112 pages), 67,239
+  building units (68 pages) and 52,110 addresses (53 pages), with zero duplicate
+  source ids. Exact Mol clipping retained 43,945 buildings and 23,788 addresses.
+- Dataset `c3a47680-cea1-406c-aebb-8ebfa8d7a359` is the only ready Mol register
+  snapshot for 2026-07-15. It has one DatasetVersion, 43,945 vector rows,
+  43,945 distinct source ids, SRID 4326, polygonal geometry only and zero invalid
+  geometries.
+- Lifecycle counts are 37,159 realized, 14 under construction, 155 planned,
+  22 not realized and 6,595 historical buildings. Exact footprint area is
+  502.1434 ha.
+- Aggregate relations contain 30,382 building units, 21,388 linked addresses
+  and 19,513 addresses in use. There are 1,687 ambiguous and 713 unmatched
+  address positions. Queryable properties contain zero prohibited address
+  label/number fields.
+- GRB reconciliation produced 36,588 matched, 5 review, 664 ambiguous and 6,688
+  unmatched register buildings. There are 353 GRB footprints without a confirmed
+  target and 329 duplicate-target groups. Realized-building match rate is
+  98.4526%; total register match rate is lower because historical and other
+  lifecycle records are retained.
+- Live exact-Area API returned all eleven governed metrics. Browser validation
+  confirmed Mol register selection, Geel GRB fallback, readable metric/warning
+  output, source inventory, MapLibre rendering, no horizontal overflow and no
+  browser console warnings/errors.
+
+Validation evidence:
+- Full local readiness passed backend compilation, 656 backend tests, one
+  Alembic head, frontend TypeScript typecheck/build and shell syntax gates.
+- Tower deployment passed all-in-one health, PostGIS 3.6 migration/schema smoke,
+  frontend proxy and icon verification.
+
+Known limitations:
+- This is a current continuously updated snapshot, not a fabricated historical
+  series. GRB remains the complete regional geometry source outside Mol.
+- Address counts are not households, dwellings, residents or population.
+  Building footprint is ground area, not floor area, height or volume.
+- Ambiguous address links, duplicate GRB targets and review/unmatched geometry
+  remain explicit evidence for later regional expansion; no nearest match is
+  forced.
+
+Next:
+- Implement P4 Digitaal Hoogtemodel Vlaanderen with a governed DTM/DSM product,
+  vertical reference, bounded raster storage and measured elevation/slope
+  statistics. Do not infer water depth or volume from terrain height alone.

docs/STORAGE_ARCHITECTURE.md

@@ -136,7 +136,7 @@ checksum conflict with an existing annual Dataset fails closed.
 Buildings and Addresses Register snapshot evidence lives under:
 
 ```text
-storage/operator-evidence/buildings-addresses-register/mol/{observed-date}/
+storage/operator-evidence/buildings-addresses-register/{area-key}/{observed-date}/
   raw/
     buildings_page_*.json
     building_units_page_*.json
@@ -153,6 +153,9 @@ counts and classified GRB reconciliation only. It enters PostGIS exclusively
 through DatasetService and ordinary `vector_features`; the operator never
 writes database rows directly. The manifest binds all raw pages, the normalized
 artifact, exact Area boundary and every GRB partition used for reconciliation.
+The Area key is deterministic (`mol`, `geel`, and so on). Reuse also requires
+the same Area label, observation date and boundary checksum, preventing one
+municipality's evidence from being imported under another Area.
 
 Offline demo export artifacts can be inspected and cleaned with:
 

docs/TODO.md

@@ -53,10 +53,10 @@ pass live Mol validation before regional expansion.
 
 ### P3 - Buildings and Addresses Register
 
-- [ ] Define a governed snapshot operator and relation mapping between building unit, building object, address and GRB geometry.
+- [x] Define a governed snapshot operator and relation mapping between building unit, building object, address and GRB geometry.
-- [ ] Keep register lifecycle/status semantics separate from GRB footprint geometry and document match confidence/unmatched rows.
+- [x] Keep register lifecycle/status semantics separate from GRB footprint geometry and document match confidence/unmatched rows.
-- [ ] Add current building-status/address metrics without exposing personal data or treating addresses as households/population.
+- [x] Add current building-status/address metrics without exposing personal data or treating addresses as households/population.
-- [ ] Add Mol reconciliation tests and a live mismatch report before regional import.
+- [x] Add Mol reconciliation tests and a live mismatch report before regional import.
 
 ### P4 - Digitaal Hoogtemodel Vlaanderen
 

scripts/provision_buildings_addresses_register.py

@@ -58,7 +58,7 @@ SOURCE_NAME = "digitaal_vlaanderen_buildings_addresses_register"
 DEFAULT_PROJECT_NAME = "Kempen Regional Workbench"
 DEFAULT_AREA_NAME = "Gemeente Mol - officiele grens"
 DEFAULT_API_URL = "http://127.0.0.1:8000"
-DEFAULT_OUTPUT_ROOT = Path("/app/storage/operator-evidence/buildings-addresses-register/mol")
+DEFAULT_OUTPUT_ROOT = Path("/app/storage/operator-evidence/buildings-addresses-register")
 DEFAULT_PAGE_LIMIT = 1000
 DEFAULT_MAX_BUILDINGS = 150_000
 DEFAULT_MAX_UNITS = 200_000
@@ -247,6 +247,22 @@ def normalize_area_name(value: str) -> str:
     return unicodedata.normalize("NFKD", value).encode("ascii", "ignore").decode("ascii").casefold()
 
 
+def area_storage_key(value: str) -> str:
+    normalized = normalize_area_name(value)
+    if normalized.startswith("gemeente "):
+        municipality = normalized.removeprefix("gemeente ").split(" - ", maxsplit=1)[0].strip()
+        if municipality:
+            return "-".join(municipality.split())
+    key = "-".join(part for part in compact_key(value).split() if part)
+    return key or "area"
+
+
+def boundary_checksum(boundary_wgs84) -> str:
+    return sha256_bytes(
+        json.dumps(mapping(boundary_wgs84), sort_keys=True).encode("utf-8")
+    )
+
+
 def locate_workspace(
     session: requests.Session,
     base_url: str,
@@ -763,7 +779,13 @@ def build_output_features(
     }
 
 
-def reusable_snapshot(snapshot_dir: Path) -> tuple[Path, Path, dict[str, Any]] | None:
+def reusable_snapshot(
+    snapshot_dir: Path,
+    *,
+    area_name: str,
+    observed_date: date,
+    expected_boundary_checksum: str,
+) -> tuple[Path, Path, dict[str, Any]] | None:
     artifact_path = snapshot_dir / "buildings_addresses_register.geojson"
     manifest_path = snapshot_dir / "buildings_addresses_register.manifest.json"
     if not artifact_path.is_file() or not manifest_path.is_file():
@@ -774,6 +796,10 @@ def reusable_snapshot(snapshot_dir: Path) -> tuple[Path, Path, dict[str, Any]] |
         return None
     if manifest.get("schema_version") != SCHEMA_VERSION:
         return None
+    if manifest.get("coverage_area") != area_name or manifest.get("observed_at") != observed_date.isoformat():
+        return None
+    if manifest.get("boundary_sha256") != expected_boundary_checksum:
+        return None
     if manifest.get("artifact_sha256") != sha256_file(artifact_path):
         return None
     for collection in manifest.get("collections") or []:
@@ -804,8 +830,14 @@ def prepare_snapshot(
     timeout: int,
     force: bool,
 ) -> tuple[Path, Path, dict[str, Any]]:
+    expected_boundary_checksum = boundary_checksum(boundary_wgs84)
     if not force:
-        reusable = reusable_snapshot(snapshot_dir)
+        reusable = reusable_snapshot(
+            snapshot_dir,
+            area_name=area_name,
+            observed_date=observed_date,
+            expected_boundary_checksum=expected_boundary_checksum,
+        )
         if reusable:
             return reusable
     snapshot_dir.mkdir(parents=True, exist_ok=True)
@@ -892,7 +924,7 @@ def prepare_snapshot(
         "crs_source": "EPSG:4326",
         "crs_clip": "EPSG:31370",
         "crs_persisted": "EPSG:4326",
-        "boundary_sha256": sha256_bytes(json.dumps(mapping(boundary_wgs84), sort_keys=True).encode("utf-8")),
+        "boundary_sha256": expected_boundary_checksum,
         "boundary_bbox_wgs84": list(boundary_wgs84.bounds),
         "collections": [buildings_source, units_source, addresses_source],
         "building_filter": building_filter,
@@ -1113,7 +1145,7 @@ def main() -> int:
         print(json.dumps({"status": "error", "message": "Invalid page or feature safety limits"}), file=sys.stderr)
         return 2
     base_url = args.base_url.rstrip("/")
-    snapshot_dir = args.output_root / args.observed_date.isoformat()
+    snapshot_dir = args.output_root / area_storage_key(args.area_name) / args.observed_date.isoformat()
     try:
         with requests.Session() as api_session:
             project_id, area_id, boundary, datasets = locate_workspace(