Add governed orthophoto release promotion

backend/app/services/source_catalog_probe_service.py

@@ -37,7 +37,7 @@ _WFS = "http://www.opengis.net/wfs/2.0"
 _XLINK = "http://www.w3.org/1999/xlink"
 _METADATA_HOST = "metadata.vlaanderen.be"
 _VERSION_DATE = re.compile(r"^(?:toestand\s+)?(\d{4}-\d{2}-\d{2})$", re.IGNORECASE)
-_ORTHOPHOTO_EDITION = re.compile(r"^\d{4}\.\d{2}$")
+_ORTHOPHOTO_EDITION = re.compile(r"^(20\d{2})\.(\d{2})$")
 _ALZ_SOURCE_NAME = "agentschap_landbouw_zeevisserij_agricultural_parcels"
 _ALZ_RELEASE_HOST = "landbouwcijfers.vlaanderen.be"
 _ALZ_RELEASE_PATH = "/open-geodata-landbouwgebruikspercelen"
@@ -681,6 +681,19 @@ def _dataset_source_name(dataset: Dataset) -> str:
 def _latest_local_version(source_name: str, datasets: list[Dataset]) -> str | None:
     candidates = [item for item in datasets if _dataset_source_name(item) == source_name and item.source_version]
     if source_name == "digitaal_vlaanderen_orthophoto":
+        official_editions = [
+            item for item in candidates if _ORTHOPHOTO_EDITION.fullmatch((item.source_version or "").strip())
+        ]
+        if official_editions:
+            latest = max(
+                official_editions,
+                key=lambda item: (
+                    tuple(int(value) for value in (item.source_version or "0.0").split(".")),
+                    _utc(item.imported_at) if item.imported_at else datetime.min.replace(tzinfo=timezone.utc),
+                    str(item.id),
+                ),
+            )
+            return latest.source_version
         explicit_current = [
             item
             for item in candidates