Complete regional history live validation

docs/CODEX_EXECUTION_LOG.md

@@ -8833,12 +8833,39 @@ Implemented:
 - Extended `provision_regional_timeseries.py`, all-in-one packaging, readiness
   compilation and operator/source documentation.
 
-Validation evidence before live provisioning:
-- Fourteen focused partition, raw-evidence, clipping, assembly, upload,
-  coordinator and packaging tests pass.
-- The official source catalog still reports the production WFS and the three
-  governed historical collections. Live partition provisioning and browser
-  Evolution validation follow in this pass.
+Validation and live evidence:
+- The final release gate passes with 685 backend tests, frontend typecheck and
+  production build, one Alembic head (`202607150001`) and script syntax checks.
+- Live Tower/PostGIS provisioning completed all 252 municipality/theme/year
+  partitions and nine combined snapshots. No snapshot has an empty municipal
+  partition. The retained regional historical audit cache is about 518 MB.
+- Persisted feature counts are: buildings 14,245 / 22,036 / 69,869; water
+  9,010 / 13,571 / 8,188; roads 6,305 / 33,578 / 30,915 for 1778 / 1873 /
+  1969 respectively. Total persisted geometry count is 207,717.
+- Each of the nine ready Datasets belongs to regional Area
+  `46ab5614-fcf8-4e63-8ea8-6049f34c14fd`, exposes one immutable
+  DatasetVersion/checksum and participates in one of three ordered temporal
+  series. A second complete operator run returned `existing` for all nine with
+  identical audited feature counts.
+- The live audit found that the full-Area fast path did not yet recognize the
+  new clipped operator. Adding its governed provenance reduced exact complete-
+  Kempen comparisons from multi-minute redundant clipping to 4.0 s for
+  buildings, 0.9 s for water and 1.9 s for roads.
+- Complete-Kempen 1778 -> 1969 results are 481.62 -> 1,833.23 ha built land,
+  1,546.89 -> 2,198.80 ha mapped water and 4,382.49 -> 6,978.12 ha mapped
+  roads. These are map-class surfaces, not modern footprints, centreline
+  lengths, bathymetry or volume.
+- Browser validation selected the historical buildings series, analyzed the
+  complete persisted Kempen Area and then municipality Mol. Mol returned
+  24.35 / 32.45 / 120.81 ha for 1778 / 1873 / 1969 and explicitly disclosed
+  the cartographic-method and unstable-object-identity limitations.
+- The irrelevant generic `0 km` metrics for polygon-only historical water and
+  road classes were removed. The workbench source context now follows the
+  selected Evolution series. Normal and 3440 x 1440 visual checks found no
+  overlap; browser console warnings/errors were empty.
+- Each deployment passed live PostGIS 3.6 connectivity, required schema/index
+  checks, database collation, Alembic head `202607150001`, frontend/API proxy
+  and icon verification.
 
 Known limitations:
 - Historical `buildings` are mapped built land-use surfaces, not individual
@@ -8849,6 +8876,7 @@ Known limitations:
   continuous equivalent to modern GRB or 10 m land-use products.
 
 Next:
-- Run the complete nine-snapshot operator on live Tower/PostGIS, verify all 28
-  partition manifests and then validate regional/municipality Evolution in the
-  browser before marking the backlog item complete.
+- Keep permanent inland bathymetry blocked on a governed depth source. The
+  next implementation pass can focus on current-only nature/terrain/flood
+  regional expansion or on a benchmarked data-refresh scheduler; it must not
+  reinterpret these historical surfaces as modern object lineage.