fix: load complete temporal dataset inventory

CHANGELOG.md

@@ -23,6 +23,9 @@
   historical imagery never produces fake current-state quality metrics.
 - Converted BWK/Natura 2000, agricultural parcels, Buildings Register, DHMV
   and bathymetry into an ordered acceptance-criteria backlog.
+- Made the frontend dataset client exhaust canonical 200-row pages. Real
+  Waterinfo persistence pushed the regional project beyond the old 50-row
+  default and exposed that older sources otherwise disappeared from the UI.
 
 ## Sprint 202 Source intelligence, full evolution metrics and local assistant (2026-07-15)
 

backend/tests/test_sprint203_waterinfo_history.py

@@ -133,3 +133,12 @@ def test_waterinfo_operator_is_packaged_and_readiness_checked() -> None:
     assert "COPY scripts/provision_waterinfo_station_history.py" in dockerfile
     assert '"provision_waterinfo_station_history.py"' in vector_service
     assert '"sum", "mean", "area_weighted_sum"' in vector_service
+    assert '"status": "no_stations_in_area"' in (ROOT / "scripts" / "provision_waterinfo_station_history.py").read_text(encoding="utf-8")
+
+
+def test_frontend_loads_all_dataset_pages_after_temporal_import_expansion() -> None:
+    client = (ROOT / "frontend" / "src" / "services" / "api" / "datasets.ts").read_text(encoding="utf-8")
+
+    assert "DATASET_PAGE_SIZE = 200" in client
+    assert "offset < (total ?? 0)" in client
+    assert "items.length !== total" in client

docs/CODEX_EXECUTION_LOG.md

@@ -8464,7 +8464,22 @@ Implemented:
 Validation evidence:
 - Focused Waterinfo/orthophoto/semantic metric tests and frontend typecheck/build
   passed before the full repository gate.
+- Full readiness passed 627 backend tests, 93 documented routes, one Alembic
+  head and the frontend production build. Tower passed PostGIS 3.6 migration,
+  schema, frontend proxy and icon smokes.
+- Live Mol import persisted 26 annual water-level observations across two
+  independent stations for 2013-2025. Two stale station series contained no
+  observations and no in-area annual discharge station was available.
+- Live temporal comparison for station `L10_089` returned 30.460 m in 2013 and
+  30.455 m in 2025 with all 13 observations, `mean` aggregation and the point-
+  measurement/no-volume warning.
+- Live 2020 bounded WMS acquisition persisted an EPSG:31370 raster with annual
+  temporal metadata; its constrained PNG endpoint returned HTTP 200.
+- Browser validation then exposed that 26 new annual datasets pushed the
+  project above the frontend's implicit 50-row dataset page. The central API
+  client now exhausts canonical 200-row pages and fails if totals drift or a
+  page is incomplete, so older population/parcel sources remain visible.
 
 Remaining operational step:
-- Deploy the all-in-one image, provision the real Mol Waterinfo station series
-  and verify one historical image acquisition/overlay through the LAN browser.
+- Redeploy the pagination correction and verify complete source visibility plus
+  the historical overlay through the LAN browser.

frontend/src/services/api/datasets.ts

@@ -20,9 +20,35 @@ import type {
   OrthophotoProductRead,
 } from '../../types'
 
+const DATASET_PAGE_SIZE = 200
+
+async function listProjectDatasets(projectId: string): Promise<DatasetListResponse> {
+  const items: DatasetCreateResponse[] = []
+  let offset = 0
+  let total: number | null = null
+  do {
+    const page = await apiGet<DatasetListResponse>(
+      `/api/v1/projects/${projectId}/datasets?limit=${DATASET_PAGE_SIZE}&offset=${offset}`,
+    )
+    if (total === null) {
+      total = page.total
+    } else if (page.total !== total) {
+      throw new Error('De datasetlijst wijzigde tijdens het laden. Vernieuw de werkruimte.')
+    }
+    items.push(...page.items)
+    if (page.items.length === 0) {
+      break
+    }
+    offset += page.items.length
+  } while (offset < (total ?? 0))
+  if (total !== null && items.length !== total) {
+    throw new Error(`Niet alle datasets konden worden geladen (${items.length}/${total}).`)
+  }
+  return { items, total: total ?? 0, limit: items.length, offset: 0 }
+}
+
 export const datasetsApi = {
-  list: (projectId: string): Promise<DatasetListResponse> =>
-    apiGet<DatasetListResponse>(`/api/v1/projects/${projectId}/datasets`),
+  list: listProjectDatasets,
   upload: (
     projectId: string,
     payload: {

scripts/provision_waterinfo_station_history.py

@@ -446,6 +446,15 @@ def main() -> int:
                     )
                     layer_path = args.output_dir / f"waterinfo_{parameter.key}_station_layer.json"
                     layer_sha256 = write_json(layer_path, station_layer)
+                    if not stations:
+                        results.append(
+                            {
+                                "parameter": parameter.key,
+                                "timeseries_group_id": parameter.group_id,
+                                "status": "no_stations_in_area",
+                                "observation_count": 0,
+                            }
+                        )
                     if len(stations) > args.max_stations:
                         raise RuntimeError(
                             f"Waterinfo returned {len(stations)} in-area {parameter.key} stations; safety limit is {args.max_stations}"