Extrude and Revolve To Object on curved faces follow the face: the tool runs through the target body and is cut back to its surface (the piece that starts at the profile); tests against a cylinder and a sphere (volumes by integration) and a revolve ending on a post; Shell Outside/Both on a cylinder through the exact curved offsets

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

crates/engine/src/lib.rs

@@ -425,5 +425,7 @@ impl Session {
     }
 }
 
+#[cfg(test)]
+mod extent_tests;
 #[cfg(test)]
 mod tests;