* fix(plugins): remove isolated npm projects on uninstall
Ordinary uninstall now removes the whole owner-managed per-plugin npm project, including packed archives and transitive dependency debris, while shared roots and retained update generations keep their existing lifecycle behavior.
* fix(plugins): preserve failed install cleanup
Allow persistence-failure compensation to remove only a planner-validated isolated npm project root, while continuing to reject shared or ambiguous cleanup targets.
Peter Steinberger
d6e6d67adc