A pattern or mirror of a suppressed feature has nothing to copy: its copies go with it and the pattern warns (the acceptance enclosure loses all four standoffs when Standoff is suppressed); scenario acceptance_pattern_of_suppressed_feature enabled

Fixes #42

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT

crates/engine/src/lib.rs

@@ -434,6 +434,8 @@ mod delete_face_tests;
 #[cfg(test)]
 mod extent_tests;
 #[cfg(test)]
+mod pattern_suppress_tests;
+#[cfg(test)]
 mod profile_refs_tests;
 #[cfg(test)]
 mod split_face_tests;