fix(point): preserve relative marker sizing

Keep rendering, picking, block transforms, and plotted output on the
same viewport-relative PDSIZE geometry without overloading wire width
fields.

src/modules/draw/inquiry/dist.rs

@@ -85,6 +85,7 @@ impl CadCommand for DistCommand {
         let p1 = self.first?;
         // The preview wire is purely visual, so f32 vertices are fine here.
         Some(WireModel {
+            point_marker: None,
             taper_widths: Vec::new(),
             world_width: 0.0,
             depth_override: None,