Add realistic cockpit surface textures

tests/integration/run_vertical_slice_foundation.gd

@@ -16,7 +16,7 @@ const ProductionInputAdapter = preload(
 	"res://game/infrastructure/input/production_input_adapter.gd"
 )
 
-const TEST_COUNT := 55
+const TEST_COUNT := 56
 
 var _failures: Array[String] = []
 
@@ -111,6 +111,7 @@ func _test_vehicle_slice(composition: VerticalSliceRoot) -> void:
 	_expect(detailing.pressure_hull_rib_count() >= 6, "cockpit exposes reinforced pressure-hull structure")
 	_expect(detailing.pipe_segment_count() >= 13, "cockpit exposes a complete life-support pipe run")
 	_expect(absf(detailing.battery_needle_degrees()) > 100.0, "analog battery gauge follows the dive snapshot")
+	_expect(detailing.textures_are_loaded(), "cockpit loads its overhead and analog gauge textures")
 	_expect("kWh" in instruments.resources_text() and "kW" in instruments.resources_text(), "battery instrument has exact units")
 	_expect("L/min" in instruments.resources_text(), "oxygen instrument has volume and consumption")
 	_expect("bar" in instruments.integrity_text(), "hull instrument has current and certified pressure")