feat(scope): make Belgium and North Sea operational default

backend/app/services/coverage_registry_service.py

@@ -272,11 +272,11 @@ SOURCE_DEFINITIONS = (
         attribution="Brussels UrbIS",
         license_note="Consult the license of the selected UrbIS dataset.",
         limitation_message=(
-            "Bounded UrbIS buildings and cadastral parcels are operational; "
-            "other Brussels themes remain unavailable until separately governed."
+            "Bounded UrbIS buildings, cadastral parcels, street axes and Land Cover blocks are operational. "
+            "Permanent water uses the official WB block class; no separate hydrography network is inferred."
         ),
         materialized_source_names=("urbis",),
-        operational_themes=("buildings", "parcels"),
+        operational_themes=("buildings", "parcels", "roads", "surface_water", "land_cover_use"),
     ),
     _contract(
         source_name="rbins_marine_reporting_units",
@@ -341,7 +341,10 @@ SOURCE_DEFINITIONS = (
         source_url="https://www.vlaanderen.be/datavindplaats",
         attribution="Agentschap Maritieme Dienstverlening en Kust (MDK)",
         license_note="Consult the official product license before acquisition.",
-        limitation_message="Strict-TLS acquisition and vertical datum evidence are not yet sufficient; no depths are synthesized.",
+        limitation_message=(
+            "Bounded strict-TLS WCS acquisition is implemented but stays disabled until the operator enables it "
+            "with a live-validated coverage id; no depths are synthesized."
+        ),
     ),
 )
 
@@ -377,6 +380,9 @@ REGIONAL_THEME_DATASETS: dict[str, dict[str, dict[str, tuple[str, ...]]]] = {
     "urbis": {
         "buildings": {"urbis": ("buildings",)},
         "parcels": {"urbis": ("parcels",)},
+        "roads": {"urbis": ("roads",)},
+        "surface_water": {"urbis": ("water",)},
+        "land_cover_use": {"urbis": ("space_occupation", "forest")},
     },
 }