The Manage plugins tab now speaks two nouns (plugin pack, plugin) and four
states (running, off, restart needed, problem). Cards carry a display name,
a one-liner, one kind tag, and their uninstall beside the switch; built-in
packs fold behind one line; the selected preset's composition renders as a
grid of cards named through the tab's own dictionary for harness modules
and through the manifest for third-party ones; entry ids, module names,
cordis copies, and probe times leave the page. The install dialog keeps
pnpm's output behind a fold that opens on failure and words each outcome;
confirmations name what still uses the package and no longer require an
acknowledgement. The client passes a preset row's declared id, not the
live tree's prefixed entry id, to the row actions.
The read-only Plugin list tab and its package, ui-settings-plugin-inventory,
are removed; the pluginInventory Remote stays as the manager's source of
preset compositions and host-tree module names.