/**
 * Worktree Server Enumeration
 * Issue #1194: listRunningWorktreeServers (D-16 / S3-004)
 *
 * The only pre-existing enumeration lives inline inside the private
 * `showAllStatus()` of `status.ts:74-92` and is not reusable. Per D-16 this
 * module adds a reusable helper and deliberately does NOT refactor `status.ts`
 * (the duplication is accepted; unification is a separate issue).
 *
 * @module worktree-servers
 */
/**
 * List issue numbers of currently running worktree servers.
 *
 * Enumerates `*.pid` files under `getPidsDir()`, extracts the issue number from
 * each file name and checks PID liveness through `IDaemonManager.isRunning()`.
 *
 * @returns Ascending list of issue numbers with a running server (empty if none
 *          or if the pids directory does not exist yet)
 */
export declare function listRunningWorktreeServers(): Promise<number[]>;
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