Implement production vertical slice foundation

game/world/submarine/submarine_actor.tscn

@@ -0,0 +1,75 @@
+[gd_scene load_steps=8 format=3]
+
+[ext_resource type="Script" path="res://game/world/submarine/submarine_actor.gd" id="1_actor"]
+
+[sub_resource type="CapsuleShape3D" id="CapsuleCollision"]
+radius = 0.72
+height = 3.8
+
+[sub_resource type="CapsuleMesh" id="CapsuleHull"]
+radius = 0.72
+height = 3.8
+
+[sub_resource type="StandardMaterial3D" id="HullMaterial"]
+albedo_color = Color(0.64, 0.48, 0.17, 1)
+metallic = 0.72
+roughness = 0.34
+
+[sub_resource type="SphereMesh" id="CanopyMesh"]
+radius = 0.58
+height = 1.05
+
+[sub_resource type="StandardMaterial3D" id="CanopyMaterial"]
+transparency = 1
+albedo_color = Color(0.04, 0.18, 0.25, 0.72)
+metallic = 0.18
+roughness = 0.16
+
+[sub_resource type="BoxMesh" id="FinMesh"]
+size = Vector3(1.8, 0.12, 1.2)
+
+[node name="SubmarineActor" type="CharacterBody3D"]
+script = ExtResource("1_actor")
+
+[node name="CollisionShape" type="CollisionShape3D" parent="."]
+rotation = Vector3(1.5708, 0, 0)
+shape = SubResource("CapsuleCollision")
+
+[node name="Hull" type="MeshInstance3D" parent="."]
+rotation = Vector3(1.5708, 0, 0)
+mesh = SubResource("CapsuleHull")
+material_override = SubResource("HullMaterial")
+
+[node name="Canopy" type="MeshInstance3D" parent="."]
+position = Vector3(0, 0.36, -0.45)
+scale = Vector3(0.85, 0.55, 1)
+mesh = SubResource("CanopyMesh")
+material_override = SubResource("CanopyMaterial")
+
+[node name="LeftFin" type="MeshInstance3D" parent="."]
+position = Vector3(-0.92, 0, 0.85)
+mesh = SubResource("FinMesh")
+material_override = SubResource("HullMaterial")
+
+[node name="RightFin" type="MeshInstance3D" parent="."]
+position = Vector3(0.92, 0, 0.85)
+mesh = SubResource("FinMesh")
+material_override = SubResource("HullMaterial")
+
+[node name="LeftProjector" type="SpotLight3D" parent="."]
+position = Vector3(-0.42, 0.05, -2.02)
+rotation_degrees = Vector3(-3, 6, 0)
+light_color = Color(0.72, 0.91, 1, 1)
+light_energy = 22.0
+shadow_enabled = true
+spot_range = 58.0
+spot_angle = 24.0
+
+[node name="RightProjector" type="SpotLight3D" parent="."]
+position = Vector3(0.42, 0.05, -2.02)
+rotation_degrees = Vector3(-3, -6, 0)
+light_color = Color(0.72, 0.91, 1, 1)
+light_energy = 22.0
+shadow_enabled = true
+spot_range = 58.0
+spot_angle = 24.0