feat: complete governed Walloon coverage sources

backend/app/services/coverage_registry_service.py

@@ -252,11 +252,11 @@ SOURCE_DEFINITIONS = (
         attribution="Service public de Wallonie",
         license_note="Consult the license of each Geoportail Wallonie product.",
         limitation_message=(
-            "Bounded PICC buildings, road axes, hydrography and operator-imported SPW bathymetry are operational; "
-            "other Walloon themes remain unavailable until separately governed."
+            "Bounded PICC buildings, road axes and hydrography, the legally current flood-hazard polygons, "
+            "and operator-imported SPW bathymetry are operational; other Walloon themes remain separately governed."
         ),
-        materialized_source_names=("spw_picc", "spw_bathymetry"),
-        operational_themes=("buildings", "roads", "surface_water", "bathymetry"),
+        materialized_source_names=("spw_picc", "spw_flood_hazard", "spw_walous_land_cover", "spw_bathymetry"),
+        operational_themes=("buildings", "roads", "surface_water", "land_cover_use", "flood_climate", "bathymetry"),
     ),
     _contract(
         source_name="urbis",
@@ -375,6 +375,8 @@ REGIONAL_THEME_DATASETS: dict[str, dict[str, dict[str, tuple[str, ...]]]] = {
         "buildings": {"spw_picc": ("buildings",)},
         "roads": {"spw_picc": ("roads",)},
         "surface_water": {"spw_picc": ("water",)},
+        "land_cover_use": {"spw_walous_land_cover": ()},
+        "flood_climate": {"spw_flood_hazard": ("flood_hazard",)},
         "bathymetry": {"spw_bathymetry": ()},
     },
     "urbis": {