fusion/.changeset/FN-5455-pr-mode-pool-lease-release.md

@runfusion/fusion

@runfusion/fusion
patch

PR-mode merge cleanup (cleanupMergedTaskArtifacts) now releases the WorktreePool lease for the merged task worktree before removing it, preventing stranded lease bookkeeping after pull-request merges (FN-5420 / FN-4954 follow-up).