Menu: stylus sticks out of the hand front and matches the touch point; haptic ticks for hover, release, sliders, scrolling

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

scripts/Locomotion.cs

@@ -96,12 +96,14 @@ public partial class Locomotion : Node
         };
         MeshInstance3D tip = new()
         {
-            Mesh = new CylinderMesh { TopRadius = 0f, BottomRadius = 0.009f, Height = 0.09f },
+            Mesh = new CylinderMesh { TopRadius = 0.0015f, BottomRadius = 0.008f, Height = MenuScreen.TipLength - MenuScreen.StylusBase },
             CastShadow = GeometryInstance3D.ShadowCastingSetting.Off,
         };
         tip.SetSurfaceOverrideMaterial(0, material);
         Basis rot = Basis.FromEuler(new Vector3(-Mathf.Pi / 2f, 0, 0));
-        tip.Transform = new Transform3D(rot, rot * new Vector3(0, 0.045f, 0));
+        // From the front of the hand box to exactly the menu's touch point.
+        float mid = (MenuScreen.TipLength + MenuScreen.StylusBase) * 0.5f;
+        tip.Transform = new Transform3D(rot, rot * new Vector3(0, mid, 0));
         controller.AddChild(tip);
     }