A z-ordered command-parent chain a declarative scope can join — the mechanism 1 seam for #5
(design/COMMAND-DESIGN.md §"Layered resolver"): grid layers are DOM siblings but must resolve as a
command-parent chain ordered by z. register slots scope into the chain at order (higher = deeper =
wins the cascade) with reparent-on-insert, and returns an unregister. A pane's LayerActivation
is the concrete implementation; this interface is what a chain-aware CommandScopeProvider needs,
so utils-react stays free of any grid dependency.
A z-ordered command-parent chain a declarative scope can join — the mechanism 1 seam for #5 (design/COMMAND-DESIGN.md §"Layered resolver"): grid layers are DOM siblings but must resolve as a command-parent chain ordered by z.
registerslotsscopeinto the chain atorder(higher = deeper = wins the cascade) with reparent-on-insert, and returns an unregister. A pane's LayerActivation is the concrete implementation; this interface is what a chain-aware CommandScopeProvider needs, soutils-reactstays free of any grid dependency.