PR #126 removed the privileged managed-plugin mechanism but kept
LoadManaged, IsManaged, and ~/.dws/plugins/managed/ fallbacks so that
plugins installed by pre-#126 builds would keep loading. The window
for that migration was ~4 days (2026-04-15 → 2026-04-19), and the
original install path mostly failed anyway (issue #124 / GitHub Pages
HTML response), so there is no real user base to preserve.
Scope of deletion:
- plugin.Loader.LoadManaged, scanDir's isManaged param, loadPlugin's
isManaged param. LoadAll now combines user + dev only.
- Plugin.IsManaged field. Converter/root.go no longer branch on it;
stdio and HTTP descriptors both report source="plugin".
- ~/.dws/plugins/managed/ branches in ListInstalled, SetEnabled,
RemovePlugin.
- config.PluginManagedDir constant.
- TestLoaderLoadManaged, TestRemoveLegacyManagedPlugin, and the
"legacy managed" table case in TestRemovePluginPurgesSettings.
Kept on purpose:
- Manifest.Type public schema field ("managed"|"user") — it appears
in existing plugin.json files and is only validated, never
behaviorally consumed.
Users with an orphaned ~/.dws/plugins/managed/ directory can
`rm -rf ~/.dws/plugins/managed/` — the CLI no longer reads it.