Delete Face (face.delete, and faces in the Delete selection): a timeline feature that removes faces and heals the gap from the neighbouring planes through kernel::delete_faces; a picked face brings the rest of its surface (both halves of a hole's wall); face picks are stored by persistent name; a face its neighbours can't close is refused with the kernel's reason

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

crates/doc/src/params.rs

@@ -246,6 +246,7 @@ impl FeatureKind {
             | FeatureKind::SheetConvert { .. }
             | FeatureKind::Align { .. }
             | FeatureKind::Remove { .. }
+            | FeatureKind::DeleteFace { .. }
             | FeatureKind::BoundaryFill { .. }
             | FeatureKind::Loft { .. }
             | FeatureKind::Sweep { .. }