Both reinstall paths in update_plugin — the monorepo-migration remote
switch AND the routine archive update every store user hits — deleted
the installed plugin directory BEFORE downloading its replacement. A
mid-update failure (bad network, registry error) permanently destroyed
the plugin. Seen in the field: a Pi with broken DNS lost 12 plugins in
one update pass during the monorepo migration.
New _reinstall_with_rollback: rename the old install aside (using the
'.standalone-backup-' name pattern plugin discovery already excludes),
run install_plugin, remove the aside on success — restore it on ANY
failure, clearing partial-download debris first. A stale aside from a
previous crash is cleared before starting.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FqzC1nzTWL4kaqgMaQZFam