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_dashboard_detailing.gd

@@ -1,26 +1,12 @@
 class_name CockpitDashboardDetailing
 extends Node3D
 
-const CockpitMaterialPalette = preload(
-	"res://game/presentation/cockpit/cockpit_material_palette.gd"
-)
-const CockpitMeshFactory = preload(
-	"res://game/presentation/cockpit/cockpit_mesh_factory.gd"
-)
-
-var _materials: CockpitMaterialPalette
-var _control_count := 0
+## The dashboard keeps its hidden digital readouts (their labels still carry the
+## exact values); this hides the placeholder parts the gauge panel replaced.
 
 
-func _init(materials: CockpitMaterialPalette) -> void:
-	_materials = materials
+func _init() -> void:
 	name = "DashboardDetailing"
-	_build_structural_frame()
-	_build_switch_banks()
-
-
-func control_count() -> int:
-	return _control_count
 
 
 func hide_obsolete_elements(cockpit: Node3D) -> void:
@@ -42,79 +28,3 @@ func hide_obsolete_elements(cockpit: Node3D) -> void:
 		var readout := cockpit.get_node_or_null("Dashboard/%s" % readout_name) as Node3D
 		if readout != null:
 			readout.visible = false
-
-
-func _build_structural_frame() -> void:
-	CockpitMeshFactory.add_box(
-		"TopRail",
-		self,
-		Vector3(0.0, 0.255, 0.115),
-		Vector3(1.50, 0.055, 0.055),
-		_materials.dark_steel
-	)
-	CockpitMeshFactory.add_box(
-		"BottomRail",
-		self,
-		Vector3(0.0, -0.205, 0.115),
-		Vector3(1.50, 0.050, 0.055),
-		_materials.dark_steel
-	)
-	for x: float in [-0.755, 0.755]:
-		CockpitMeshFactory.add_box(
-			"SideRail",
-			self,
-			Vector3(x, 0.025, 0.115),
-			Vector3(0.050, 0.46, 0.055),
-			_materials.dark_steel
-		)
-	for screw_position: Vector2 in [
-		Vector2(-0.72, -0.18),
-		Vector2(-0.72, 0.23),
-		Vector2(0.72, -0.18),
-		Vector2(0.72, 0.23),
-		Vector2(-0.24, -0.18),
-		Vector2(0.24, -0.18),
-	]:
-		CockpitMeshFactory.add_cylinder(
-			"PanelScrew",
-			self,
-			Vector3(screw_position.x, screw_position.y, 0.151),
-			0.010,
-			0.010,
-			_materials.brass,
-			Vector3(90.0, 0.0, 0.0)
-		)
-
-
-func _build_switch_banks() -> void:
-	_add_switch_bank(-0.59, "AUX")
-	_add_switch_bank(0.59, "POMPES")
-
-
-func _add_switch_bank(center_x: float, caption: String) -> void:
-	CockpitMeshFactory.add_box(
-		"SwitchPlate",
-		self,
-		Vector3(center_x, -0.205, 0.145),
-		Vector3(0.25, 0.060, 0.020),
-		_materials.overhead_steel
-	)
-	for offset: float in [-0.075, -0.025, 0.025, 0.075]:
-		CockpitMeshFactory.add_cylinder(
-			"ToggleSwitch",
-			self,
-			Vector3(center_x + offset, -0.195, 0.171),
-			0.006,
-			0.030,
-			_materials.dark_steel,
-			Vector3(90.0, 0.0, 0.0)
-		)
-		_control_count += 1
-	var label := Label3D.new()
-	label.name = "%sLabel" % caption.to_pascal_case()
-	label.text = caption
-	label.font_size = 10
-	label.pixel_size = 0.00055
-	label.modulate = Color(0.72, 0.69, 0.56)
-	label.position = Vector3(center_x, -0.235, 0.165)
-	add_child(label)