/**
 * Registry of build-notification endpoints (SSE URLs) that already have an
 * active watcher. Used to deduplicate `EventSource` subscriptions when
 * multiple remotes resolve to the same physical endpoint.
 */
export declare function hasBuildWatcher(endpoint: string): boolean;
export declare function registerBuildWatcher(endpoint: string): void;
export declare function unregisterBuildWatcher(endpoint: string): void;