Regira TreeList (front-end)

@regira/modules/treelist — a generic, framework-agnostic hierarchical data structure: a TreeList<T> of TreeNode<T> items with helpers to navigate ancestors, offspring and roots. Plain TypeScript (no Vue, no axios). The entities tree composable and buildNavigationTree are both built on it.

What it provides

Export	Purpose
TreeList<T>	Tree container; extends Array<TreeNode<T>> and keeps a separate roots array. Also the default export.
TreeNode<T>	A node: value, parent, level, children, plus add / update / remove and navigation helpers.
IFindParents<T>	(value, candidates) => parents[] — the callback TreeList.init uses to wire a flat list into a hierarchy.

Build from a flat list with new TreeList<T>().init(values, findParents), or imperatively via the constructor / addValue / addValues. Navigate with getRoots, getAncestors, getOffspring, getNodes, getValues; mutate with remove (cascades to descendants) and move (re-parent).