The sidebar Plugins page now drives `ctx.pluginManager` from #4182 and the
settings Plugin list tab goes back to read-only: its bundle form and row
checkboxes are removed, and the page joins `listBundles` with
`listPlugins` into one view per bundle, decides availability from the
inventory's `managementAvailable`, switches bundles and rows through
`setBundleEnabled` and `setPluginEnabled`, and confirms uninstalls.
The manager gains what the guided install dialog needs: `inspect(spec)`
reads a spec through the registry or a directory before anything installs
and refuses specs without a bundle; `installBundle` takes a request id,
streams each pnpm run as `plugin-manager/install-log`, reports its phases
as `plugin-manager/install-state`, classifies a failed run into
`packageResult.kind`, names the bundle it added, and restores
`package.json` and `pnpm-lock.yaml` when the run fails, is cancelled, or
adds a package without a bundle patch; `cancelInstall(requestId)` answers
only after pnpm exited and the files are back; `listBundles` carries
titles, one-liners, declared rows with their live entries, and the
built-in rows a bundle overrides; every completed operation and every
patch generation applied outside the manager emits
`plugin-manager/changed`. The config gains `pnpmCommand` and
`inspectTimeoutMs`. App boot emits `profile/reconciled` after each applied
patch generation and finds a root Include mounted under its pinned id by
another copy of the module.
Row diagnostics, dependency checks, and the non-bundle dependency group
are not carried over; the web e2e scaffold mounts a launcher-style
managed profile instead of the removed profile runtime.