feat: pick sketch profiles by their bounding curve ids so features keep the same region when parameters move the geometry, matching curves cut into pieces, refusing ambiguous or missing picks instead of taking another region, and storing point picks by curves

crates/engine/src/lib.rs

@@ -550,6 +550,8 @@ mod extent_tests;
 #[cfg(test)]
 mod pattern_suppress_tests;
 #[cfg(test)]
+mod profile_curves_tests;
+#[cfg(test)]
 mod profile_refs_tests;
 #[cfg(test)]
 mod split_face_tests;