Method subscribe

apps/webuiapps/src/lib/FileSystemStore.ts:94–99

* Subscribe to change events * @returns Unsubscribe function

(listener: FileSystemListener)

   * @returns Unsubscribe function
   */
  subscribe(listener: FileSystemListener): () => void {
    this.listeners.add(listener);
    return () => {
      this.listeners.delete(listener);
    };
  }

  // ============ Query Operations ============