Marketplace and `omp plugin link` installs write to
`<plugins>/node_modules/` rather than to `extensions:` in settings,
so the original PR still missed their sibling skills/, hooks/,
tools/, commands/, rules/, prompts/, .mcp.json sub-trees. Wire
listOmpExtensionRoots to enumerate getEnabledPlugins(cwd, { home })
in addition to CLI-injected and settings-driven roots.
Adds an optional { home } parameter to getEnabledPlugins so the
discovery loader can pass through LoadContext.home for tempdir-rooted
tests. The getPluginsNodeModules/getPluginsPackageJson/
getPluginsLockfile helpers gain the same optional home overload so
they mirror getPluginsDir.
Per-PR review feedback: https://github.com/can1357/oh-my-pi/pull/1498
roboomp
bdce9cf068