* plugins: allow updating agent plugins
Add update detection and update buttons to the agent plugins view and editor.
This allows users to see when installed plugins have newer versions available
and update them directly from the UI without manually checking for updates.
- Export hasSourceChanged() from pluginMarketplaceService for reuse
- Add 'outdated' and 'liveMarketplacePlugin' fields to IInstalledPluginItem
- Fetch marketplace data in AgentPluginsListView.show() to cross-reference
installed vs live versions and mark outdated plugins
- Add UpdatePluginAction to list view with live marketplace data
- Add UpdatePluginEditorAction to plugin editor with live marketplace data
- Both update actions re-register the plugin with updated metadata after
successful update so the UI immediately reflects the new version
- Read fresh installed metadata from pluginMarketplaceService.installedPlugins
store (not stale IAgentPlugin.fromMarketplace) for accurate version checks
- Pass 'silent' option to runInstall() to show non-blocking notification
instead of dialog when silent=true
- Re-register plugins with live data after updateAllPlugins() completes
so stored sourceDescriptor reflects new version/ref/sha
(Commit message generated by Copilot)
* pr comments and cleanup
* fix test failure
0a8edf7b2f