Persisted "show port names" preference for the node editor.
Mirrors the ThemeToggle pattern: state seeded from localStorage, written back on every change. Default is visible — port names were previously discoverable only by hovering a handle.
Persisted "show port names" preference for the node editor.
Mirrors the ThemeToggle pattern: state seeded from localStorage, written back on every change. Default is visible — port names were previously discoverable only by hovering a handle.