Organize 22+ schema nodes into logical categories: - Fabric Topology (Fabric, Site, Device, Platform, Underlay Links) - Interfaces (Ethernet, Loopback, VLAN SVI, LAG, VXLAN) - IP Addressing - Layer 2 / VXLAN (VLAN, VNI, VTEP, Mappings, EVPN) - Routing / BGP (AS, Router Config, Peer Groups, Sessions, AFI) - VRF (VRF, Route Targets, Assignments) - MLAG (Domain, Peer Config, Interface) - Host Connectivity