docs: record live Mol nature validation

docs/CODEX_EXECUTION_LOG.md

@@ -8502,3 +8502,58 @@ Live completion evidence:
   winter orthophoto as a MapLibre overlay. The UI retained its explicit warning
   that historical imagery is not validated against the current GRB state.
 - The browser console contained no warnings or errors after the complete flow.
+
+## Sprint 204 - Governed BWK and Natura 2000 for Mol (2026-07-15)
+
+Implemented:
+- Added `provision_mol_bwk_natura2000.py` for the official INBO
+  `BWK:Bwkhab` state-2025 WFS. The explicit operator follows complete
+  pagination, retains every raw page with URL and SHA256 evidence, and refuses
+  silent replacement when a persisted checksum differs.
+- Clipped source polygons against the exact persisted Mol Area in EPSG:31370,
+  transformed valid polygonal output to EPSG:4326 and imported only through
+  the canonical Dataset upload route. Original BWK evaluation, mapping-unit,
+  origin, habitat and PHAB fields remain present on persisted features.
+- Added server-owned filtered PostGIS metrics for the official `EVAL` classes,
+  area-weighted Natura 2000 habitat, regionally important biotopes and
+  uncertain `ohab` knowledge gaps. PHAB-derived values remain labelled as
+  estimates.
+- Added the Natuurwaarde map theme and source-inventory state. The 2025 product
+  is presented as one current map state and not as a fabricated annual trend.
+
+Validation evidence:
+- The source fetch retained 11 checksummed WFS pages containing 10,332 bbox
+  features. Exact Mol clipping retained 4,668 features, rejected 5,664 outside
+  features, clipped 476 boundary-crossing features and found no duplicates.
+- Full local readiness passed backend compilation, 637 backend tests, one
+  Alembic head, frontend TypeScript typecheck/build and shell syntax gates.
+- Tower deployment passed container health, PostGIS 3.6 migration/schema smoke,
+  frontend proxy and icon verification.
+- The first live upload correctly failed before persistence because
+  `observed_at` lacked the required `temporal_series_key`. The operator now
+  records `inbo-bwk-natura2000:mol` with snapshot granularity; the focused
+  regression suite passed and the corrected deployment imported exactly 4,668
+  `vector_features`. A second operator run returned `existing` for the same
+  Dataset and checksum.
+- A live exact-Area PostGIS selection measured 11,447.996 ha mapped BWK area:
+  960.446 ha very valuable, 3,082.023 ha valuable, 4,697.797 ha less valuable
+  and 2,707.730 ha mixed. Source-faithful weighted results were 821.690 ha
+  Natura 2000 habitat, 143.565 ha regional biotope and 104.557 ha uncertain
+  habitat/knowledge gap.
+- Browser validation at 1280x720 selected Mol, activated Natuurwaarde and ran
+  the full-work-area analysis. All seven available themes returned persisted
+  metrics, the MapLibre layer rendered, no horizontal document overflow was
+  present and the console contained no warnings or errors. The source inventory
+  reports one current BWK state and 4,668 loaded map polygons.
+
+Known limitations:
+- The official state-2025 edition is the best available map state, not one
+  uniform 2025 field survey. Origin fields remain necessary for interpretation.
+- PHAB percentages can be theoretical source allocations and may differ from
+  field reality. GeoIntel does not reinterpret them as exact field coverage.
+- Regional Kempen coverage and historical comparison remain separate future
+  work; this sprint proves the governed Mol path only.
+
+Next:
+- Implement P2 annual agricultural-use parcels, beginning with an edition and
+  code-list comparability audit before any import or trend is exposed.