catalogue

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cat := catalogue.Build(propertyTypes.Entries)

// Path-based lookup: "residential/apartment"
node, ok := cat.Lookup("residential/apartment")
// node.Label == "Apartment", node.Depth == 2

// Walk the tree for navigation rendering
cat.Walk(func(node *catalogue.Node, depth int) bool {
    indent := strings.Repeat("  ", depth)
    fmt.Printf("%s%s (%d children)\n", indent, node.Label, len(node.Children))
    return true // continue traversal
})
// residential (3 children)
//   apartment (0 children)
//   house (2 children)
//     townhouse (0 children)
//     detached (0 children)