glyenzy 0.8.0

New features

• Biosynthesis functions now return typed glyenzy_biosynthesis_network objects that preserve their igraph interface and support collision-aware plot() and ggplot2::autoplot() layered DAG layouts with glycan nodes and labeled concrete or virtual enzyme edges. (#35, #36)
• trace_biosynthesis() and trace_biosynthesis_virtual() now mark target glycans with a logical target vertex attribute; autoplot() highlights them by default in multi-target networks, with explicit control through highlight_target. (#37, #38)