message: fix: prevent label duplication during node attachment
diff: @@ -53,8 +53,8 @@ fn add_aux_node(node: &mut AuspiceTreeNode) {
  let mut aux_node = node.clone();
  aux_node.branch_attrs.mutations.clear();
  - // TODO: Remove branch label (if present)
  -
  + // Remove other branch attrs like labels to prevent duplication
  + aux_node.branch_attrs.other = serde_json::Value::default();
  node.children.push(aux_node);
  node.name = format!("{}_parent", node.name);
  