feat(cockpit): replace procedural cockpit with twelve scripted models

Instance twelve Blender-scripted glTF models in the cockpit scene and
rebuild the cabin around them: gauge panel, sonar, switch panel, alert
box, speaker, porthole, hull wall, caged lamps, gas bottle, handrails
and side consoles. Presentation only; no domain, application or world
rule changes beyond enabling glow in the test environment.

- Needles, alert lamps and sonar screen are driven by the existing
  snapshots; the alert box now carries SYS/ATTN/ALRM.
- Depth dial reads percent of certified depth.
- Sonar display restyled as a turquoise holographic relief with a
  shader grid and height scale; SubViewport matches the glass (960x604).
- Cabin lighting retuned: warm pooled lamp light, cool porthole rim,
  lamp shadows, dial backlight.
- Procedural stand-ins removed (bulkhead, tanks, consoles, levers,
  indicator columns, placeholder pipe run, dial face PNGs).
- Tests adapted where nodes disappeared; one assertion removed
  (pipe_segment_count) until the pipe kit is placed.
- Model .glb files are committed without LFS; textures Godot extracts
  next to them at import are ignored.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

game/presentation/cockpit/cockpit_detailing.gd

@@ -4,6 +4,7 @@ extends Node3D
 const DiveUpdate = preload("res://game/domain/dive/dive_update.gd")
 const DiveAlertLevel = preload("res://game/domain/dive/dive_alert_level.gd")
 const VehicleTelemetry = preload("res://game/application/dive/vehicle_telemetry.gd")
+const CockpitAlertBox = preload("res://game/presentation/cockpit/cockpit_alert_box.gd")
 const CockpitAnalogGauges = preload("res://game/presentation/cockpit/cockpit_analog_gauges.gd")
 const CockpitDashboardDetailing = preload(
 	"res://game/presentation/cockpit/cockpit_dashboard_detailing.gd"
@@ -19,13 +20,17 @@ const CockpitSonarConsole = preload(
 const CockpitPracticalLighting = preload(
 	"res://game/presentation/cockpit/cockpit_practical_lighting.gd"
 )
+const CockpitSwitchPanel = preload(
+	"res://game/presentation/cockpit/cockpit_switch_panel.gd"
+)
 
 var _materials: CockpitMaterialPalette
 var _painted_steel: Material
 var _dark_steel: Material
-var _brass: Material
-var _copper: Material
 var _analog_gauges: CockpitAnalogGauges
+var _alert_box: CockpitAlertBox
+var _switch_panel: CockpitSwitchPanel
+var _gas_bottle: Node3D
 var _dashboard_detailing: CockpitDashboardDetailing
 var _side_equipment: CockpitSideEquipment
 var _sonar_console: CockpitSonarConsole
@@ -35,9 +40,6 @@ var _practical_lighting: CockpitPracticalLighting
 func _ready() -> void:
 	_create_materials()
 	_apply_materials_to_existing_cockpit()
-	_build_pressure_hull_ribs()
-	_build_life_support_pipes()
-	_build_panel_hardware()
 	_build_dashboard_instrumentation()
 	_build_equipment_assemblies()
 
@@ -46,32 +48,24 @@ func present(update: DiveUpdate, telemetry: VehicleTelemetry) -> void:
 	if update == null or update.snapshot == null or telemetry == null:
 		return
 	var snapshot = update.snapshot
-	_analog_gauges.present(
-		snapshot.oxygen.ratio,
-		snapshot.battery.ratio,
-		snapshot.hull.ratio,
-		clampf(
-			snapshot.depth.current_m
-			/ maxf(snapshot.depth.certified_m, 0.001),
-			0.0,
-			1.0
-		),
-		snapshot.alerts.maximum
-	)
 	var alert_level: DiveAlertLevel.Value = snapshot.alerts.maximum
+	if _analog_gauges != null:
+		_analog_gauges.present(
+			snapshot.oxygen.ratio,
+			snapshot.battery.ratio,
+			snapshot.hull.ratio,
+			clampf(
+				snapshot.depth.current_m
+				/ maxf(snapshot.depth.certified_m, 0.001),
+				0.0,
+				1.0
+			)
+		)
+	if _alert_box != null:
+		_alert_box.present(alert_level)
 	_practical_lighting.present(alert_level)
 
 
-func pressure_hull_rib_count() -> int:
-	var ribs := get_node_or_null("PressureHullRibs")
-	return 0 if ribs == null else ribs.get_child_count()
-
-
-func pipe_segment_count() -> int:
-	var pipes := get_node_or_null("LifeSupportPipes")
-	return 0 if pipes == null else pipes.get_child_count()
-
-
 func battery_needle_degrees() -> float:
 	return 0.0 if _analog_gauges == null else _analog_gauges.battery_needle_degrees()
 
@@ -80,25 +74,30 @@ func textures_are_loaded() -> bool:
 	return (
 		_materials != null
 		and _materials.overhead_steel.albedo_texture != null
-		and _materials.oxygen_gauge_face.albedo_texture != null
-		and _materials.battery_gauge_face.albedo_texture != null
-		and _materials.hull_gauge_face.albedo_texture != null
-		and _materials.depth_gauge_face.albedo_texture != null
+		and _analog_gauges != null
+		and _analog_gauges.dial_texture_is_loaded()
 	)
 
 
 func dashboard_control_count() -> int:
-	return 0 if _dashboard_detailing == null else _dashboard_detailing.control_count()
+	return 0 if _switch_panel == null else _switch_panel.control_count()
 
 
 func side_equipment_count() -> int:
 	if _side_equipment == null:
 		return 0
-	return _side_equipment.tank_count() + _side_equipment.junction_box_count()
+	return _side_equipment.junction_box_count() + (0 if _gas_bottle == null else 1)
 
 
 func side_control_count() -> int:
-	return 0 if _side_equipment == null else _side_equipment.control_count()
+	if _side_equipment == null:
+		return 0
+	var bottle_valve_count := (
+		0
+		if _gas_bottle == null
+		else _gas_bottle.find_children("*ValveWheel", "Node3D", true, false).size()
+	)
+	return _side_equipment.control_count() + bottle_valve_count
 
 
 func sonar_control_count() -> int:
@@ -117,8 +116,6 @@ func _create_materials() -> void:
 	_materials = CockpitMaterialPalette.new()
 	_painted_steel = _materials.painted_steel
 	_dark_steel = _materials.dark_steel
-	_brass = _materials.brass
-	_copper = _materials.copper
 
 
 func _apply_materials_to_existing_cockpit() -> void:
@@ -127,39 +124,12 @@ func _apply_materials_to_existing_cockpit() -> void:
 		[
 			"CabinShell/LeftWall",
 			"CabinShell/RightWall",
-			"LeftConsole",
-			"RightConsole",
-		]
-	)
-	_apply_material_to_paths(
-		_dark_steel,
-		[
-			"CabinShell/RearBulkhead",
-			"PortholeAssembly/LeftBulkhead",
-			"PortholeAssembly/RightBulkhead",
-			"PortholeAssembly/BottomBulkhead",
-			"ThrottleLever",
-			"VerticalLever",
 		]
 	)
+	_apply_material_to_paths(_dark_steel, ["CabinShell/RearBulkhead"])
 	_apply_material_to_paths(
 		_materials.overhead_steel,
-		[
-			"CabinShell/Ceiling",
-			"PortholeAssembly/TopBulkhead",
-			"Dashboard/MainPanel",
-		]
-	)
-	_apply_material_to_paths(
-		_brass,
-		[
-			"PortholeAssembly/WindowFrame",
-			"Dashboard/ResourcesFrame",
-			"Dashboard/NavigationFrame",
-			"Dashboard/IntegrityFrame",
-			"ThrottleKnob",
-			"VerticalKnob",
-		]
+		["CabinShell/Ceiling"]
 	)
 func _apply_material_to_paths(material: Material, paths: Array[String]) -> void:
 	var cockpit := get_parent()
@@ -169,128 +139,26 @@ func _apply_material_to_paths(material: Material, paths: Array[String]) -> void:
 			mesh.material_override = material
 
 
-func _build_pressure_hull_ribs() -> void:
-	var root := Node3D.new()
-	root.name = "PressureHullRibs"
-	add_child(root)
-	for rib_index in 2:
-		var rib := MeshInstance3D.new()
-		rib.name = "CircularRib%d" % (rib_index + 1)
-		var torus := TorusMesh.new()
-		torus.inner_radius = 1.00
-		torus.outer_radius = 1.075
-		torus.rings = 48
-		torus.ring_segments = 10
-		rib.mesh = torus
-		rib.material_override = _dark_steel
-		rib.position = Vector3(0.0, 0.22, -0.90 + rib_index * 1.35)
-		rib.rotation_degrees.x = 90.0
-		root.add_child(rib)
-
-	for side: float in [-1.0, 1.0]:
-		CockpitMeshFactory.add_box(
-			"AngledShoulder",
-			root,
-			Vector3(side * 0.88, 0.84, -0.36),
-			Vector3(0.11, 0.62, 1.52),
-			_painted_steel,
-			Vector3(0.0, 0.0, side * -18.0)
-		)
-		CockpitMeshFactory.add_box(
-			"LowerStringer",
-			root,
-			Vector3(side * 0.91, -0.38, -0.18),
-			Vector3(0.10, 0.12, 1.70),
-			_dark_steel
-		)
-
-
-func _build_life_support_pipes() -> void:
-	var root := Node3D.new()
-	root.name = "LifeSupportPipes"
-	add_child(root)
-	for side: float in [-1.0, 1.0]:
-		var x: float = side * 0.83
-		CockpitMeshFactory.add_cylinder(
-			"VerticalPipe",
-			root,
-			Vector3(x, 0.33, -1.12),
-			0.027,
-			1.18,
-			_copper
-		)
-		CockpitMeshFactory.add_cylinder(
-			"ReturnPipe",
-			root,
-			Vector3(side * 0.73, 0.47, -1.09),
-			0.019,
-			0.92,
-			_brass
-		)
-		for clamp_y: float in [-0.04, 0.35, 0.72]:
-			var clamp := MeshInstance3D.new()
-			clamp.name = "PipeClamp"
-			var torus := TorusMesh.new()
-			torus.inner_radius = 0.027
-			torus.outer_radius = 0.041
-			torus.rings = 16
-			torus.ring_segments = 6
-			clamp.mesh = torus
-			clamp.material_override = _dark_steel
-			clamp.position = Vector3(x, clamp_y, -1.12)
-			root.add_child(clamp)
-		CockpitMeshFactory.add_sphere(
-			"PipeJunction",
-			root,
-			Vector3(x, 0.91, -1.12),
-			0.052,
-			_copper
-		)
-		CockpitMeshFactory.add_cylinder_between(
-			"UpperBranchPipe",
-			root,
-			Vector3(x, 0.84, -1.12),
-			Vector3(side * 0.72, 0.77, -1.10),
-			0.019,
-			_brass
-		)
-
-
-func _build_panel_hardware() -> void:
-	var root := Node3D.new()
-	root.name = "PanelHardware"
-	add_child(root)
-	for x: float in [-0.73, -0.49, -0.24, 0.24, 0.49, 0.73]:
-		for y: float in [-0.18, 0.22]:
-			CockpitMeshFactory.add_cylinder(
-				"PanelFastener",
-				root,
-				Vector3(x, y, -1.105),
-				0.014,
-				0.018,
-				_dark_steel,
-				Vector3(90.0, 0.0, 0.0)
-			)
-
-
-
 func _build_dashboard_instrumentation() -> void:
 	var dashboard := get_parent().get_node_or_null("Dashboard") as Node3D
 	if dashboard == null:
 		return
-	_dashboard_detailing = CockpitDashboardDetailing.new(_materials)
+	_dashboard_detailing = CockpitDashboardDetailing.new()
 	dashboard.add_child(_dashboard_detailing)
 	_dashboard_detailing.hide_obsolete_elements(get_parent())
-	_analog_gauges = CockpitAnalogGauges.new(_materials)
-	dashboard.add_child(_analog_gauges)
+	_analog_gauges = dashboard.get_node_or_null("AnalogGauges") as CockpitAnalogGauges
 
 
 func _build_equipment_assemblies() -> void:
 	_side_equipment = CockpitSideEquipment.new(_materials)
 	add_child(_side_equipment)
-	var sonar_monitor := get_parent().get_node_or_null("SonarMonitor") as Node3D
-	if sonar_monitor != null:
-		_sonar_console = CockpitSonarConsole.new(_materials)
-		sonar_monitor.add_child(_sonar_console)
+	var cockpit := get_parent()
+	_sonar_console = cockpit.get_node_or_null("SonarMonitor") as CockpitSonarConsole
+	_alert_box = cockpit.get_node_or_null("AlertBox") as CockpitAlertBox
+	_switch_panel = cockpit.get_node_or_null("SwitchPanel") as CockpitSwitchPanel
+	_gas_bottle = cockpit.get_node_or_null("GasBottle") as Node3D
 	_practical_lighting = CockpitPracticalLighting.new(_materials)
 	add_child(_practical_lighting)
+	# The alert box hangs between the left lamp and the gas bottle: casting, it
+	# puts the bottle in full shadow.
+	CockpitMeshFactory.disable_shadow_casting(_alert_box)