Sketches on body faces follow their face: the plane is a face reference found again on each evaluation (same normal, nearest the picked point), and face extrudes (Extrude on a face, Press Pull) use the linked projection of the face's edges instead of a frozen copy, so they follow when earlier features change

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/doc/src/project.rs

@@ -347,7 +347,7 @@ pub(crate) fn nearest_edge(m: &Mesh, p: Vec3) -> Option<(usize, Vec3, f64)> {
     best
 }
 
-fn closest_on_triangle(p: Vec3, a: Vec3, b: Vec3, c: Vec3) -> Vec3 {
+pub(crate) fn closest_on_triangle(p: Vec3, a: Vec3, b: Vec3, c: Vec3) -> Vec3 {
     let n = (b - a).cross(c - a);
     let Some(nn) = n.normalized() else { return closest_on_segment(p, a, b) };
     let q = p - nn * (p - a).dot(nn);