* Run safe worktree cleanup on dev and add interactive pnpm reclaim
* Rename storage cleanup command to reclaim-space
* Keep real stream constructors in transcript dependency tests
* Detach cleanup output and align historical cache previews
* Share immutable historical source across local cross-version test caches
* Add preview-first cleanup of old historical test caches
* Include historical test cache cleanup in worktree space maintenance
* Report and retain read-only Electron installs during cleanup
* Protect read-only installs under root and isolate cleanup CLI fixtures