/**
 * Best-effort post-delivery worktree sweep (crew#620 — Acceptance 3).
 *
 * Removes the run's worktree (`<repoRoot>/wicked-worktrees/<runId>`) and prunes stale
 * worktree entries from the registered repo. Called ONLY when the run is confirmed delivered
 * (PR open); never for cancelled or failed runs.
 *
 * Never throws — all outcomes (removed / not-present / git-error) are logged. The diff
 * endpoint falls back to the run branch when the worktree is gone (F-7R2-013).
 */
export declare function sweepDeliveredWorktree(runId: string, repoRoot: string, log: (m: string) => void): Promise<void>;
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