Variable workerAPI`Const`

workerAPI: {
    initialize: (wasmPath?: string) => Promise<SortWorkerInitResult>;
    registerNode: (p: RegisterNodeParams) => void;
    sort: (p: SortParams) => SortResult | null;
    releaseNode: (nodeId: string) => void;
    releaseAllNodes: () => void;
} = ...

Comlink RPC surface. Each entry binds state to its task helper.