// The single place in @local-studio/agent-runtime allowed to touch globalThis.//// The runtime package is bundled into the Next server (transpilePackages), so// `next dev` HMR can re-evaluate its modules independently for different route// bundles. Long-lived runtime state (the session manager, the browser host,// the Chrome process handle, resource diagnostics) must survive those// re-evaluations and be shared across route bundles, so each singleton is// registered here under a stable key and resolved through globalThis on// creation. In production builds every route shares one module instance and// this is a plain one-time initialization.//// Do NOT add globalThis access anywhere else in this package; add a// getGlobalSingleton() call here-based singleton instead. const GLOBAL_KEY = "__localStudioAgentRuntimeInstances"; type InstanceRegistry = Map<string, unknown>; function registry(): InstanceRegistry {  const g = globalThis as typeof globalThis & {    [GLOBAL_KEY]?: InstanceRegistry;  };  if (!g[GLOBAL_KEY]) g[GLOBAL_KEY] = new Map();  return g[GLOBAL_KEY];} export function getGlobalSingleton<T>(key: string, create: () => T): T {  const map = registry();  if (!map.has(key)) map.set(key, create());  return map.get(key) as T;}