feat: scale village queries and enrich Jajce center

tests/jajce_world_scaffold_test.gd

@@ -63,10 +63,48 @@ func _run() -> void:
 	_check(world.has_node("WaterRoot"), "JajceWorld should expose WaterRoot")
 	_check(world.has_node("VillageRoot"), "JajceWorld should expose VillageRoot")
 	_check(world.has_node("FoliageRoot"), "JajceWorld should expose FoliageRoot")
+	_check(world.has_node("WildlifeRoot"), "JajceWorld should expose ambient WildlifeRoot")
 	_check(
 		world.get_node("FoliageRoot").get_child_count() >= 10,
 		"JajceWorld should include restrained authored foliage clusters"
 	)
+	var conifer_count := 0
+	for foliage in world.get_node("FoliageRoot").get_children():
+		if foliage.name.begins_with("Conifer_"):
+			conifer_count += 1
+	_check(conifer_count >= 6, "Citadel and river edges should include conifer silhouettes")
+	_check(
+		world.get_node("WildlifeRoot").get_child_count() >= 3,
+		"Village center should include a few oversized ambient butterflies"
+	)
+	var grass_field := world.get_node("TerrainRoot/Terrain3D/CozyGrassField")
+	var grass_material := grass_field.get("mesh_material_override") as ShaderMaterial
+	var grass_process := grass_field.get("process_material") as ShaderMaterial
+	_check(
+		int(grass_field.get("particle_count")) in range(9000, 15001),
+		"Camera-local Terrain3D grass should stay inside its bounded particle budget"
+	)
+	_check(
+		(
+			grass_material != null
+			and grass_material.shader == load("res://world/jajce/materials/cozy_grass.gdshader")
+		),
+		"Terrain grass should use the cozy wind-and-interaction shader"
+	)
+	var grass_max_scale := Vector3.ZERO
+	var grass_clod_boost := INF
+	if grass_process != null:
+		grass_max_scale = grass_process.get_shader_parameter("max_scale") as Vector3
+		grass_clod_boost = float(grass_process.get_shader_parameter("clod_scale_boost"))
+	_check(
+		grass_process != null and grass_max_scale.y <= 0.5 and grass_clod_boost <= 0.2,
+		"Grass placement should stay short enough to preserve villagers and paths"
+	)
+	var grass_controller := world.get_node("TerrainRoot/GrassInteractionController")
+	_check(
+		grass_controller.get("grass_material") == grass_material,
+		"Grass interaction should update the same material rendered by Terrain3D particles"
+	)
 	_check(
 		(
 			not world.has_node("WindStrokes_Valley")
@@ -156,7 +194,15 @@ func _run() -> void:
 	)
 	_check(tree_wind_is_bounded, "Tree wind should stay within the restrained cozy-motion budget")
 	_check(world.has_node("FortressBlockout"), "JajceWorld should include the fortress landmark")
+	_check(
+		world.has_node("FortressBlockout/Keep/CitadelKeep"),
+		"Fortress silhouette should expose a distinct summit citadel"
+	)
 	_check(world.has_node("WaterRoot/WaterfallBody"), "WaterRoot should include a waterfall drop")
+	_check(
+		world.has_node("WaterRoot/WaterfallBody/RockFrame"),
+		"Waterfall should be framed by the rocky river threshold"
+	)
 	_check(
 		world.has_node("WaterRoot/WaterfallMist"),
 		"WaterRoot should include waterfall mist particles"
@@ -167,10 +213,19 @@ func _run() -> void:
 		"Waterfall mist particles should have visible billboard geometry"
 	)
 	_check(
-		waterfall_mist.position.distance_to(Vector3(25.0, 0.8, -24.0)) < 0.01,
+		waterfall_mist.position.distance_to(Vector3(25.0, 2.05, -24.0)) < 0.01,
 		"Waterfall mist should stay at the waterfall base instead of obscuring the village"
 	)
 	_check(world.has_node("WaterRoot/RiverSurface"), "WaterRoot should include a river surface")
+	var river_ribbon := world.get_node("WaterRoot/RiverSurface/RiverRibbon") as MeshInstance3D
+	_check(
+		river_ribbon.mesh is ArrayMesh,
+		"River should build a lightweight ribbon from the current Terrain3D surface"
+	)
+	_check(
+		world.has_node("WaterRoot/RiverSurface/PlungePool"),
+		"River should widen into a readable plunge pool beneath the waterfall"
+	)
 	var environment: Environment = (
 		(world.get_node("WorldEnvironment") as WorldEnvironment).environment
 	)
@@ -190,6 +245,11 @@ func _run() -> void:
 		world.has_node("VillageRoot/Mill") and world.has_node("VillageRoot/Bridge"),
 		"VillageRoot should include the mill and bridge blockouts"
 	)
+	var house_count := 0
+	for village_child in world.get_node("VillageRoot").get_children():
+		if village_child.name.begins_with("House_"):
+			house_count += 1
+	_check(house_count >= 8, "Roofs should form a small residential amphitheater below the citadel")
 	var smoke_count := 0
 	var smoke_is_translucent := true
 	var smoke_follows_wind := true