- Add dashboard backend routes for Pi settings management with comprehensive route tests
- Add API client functions and tests for fetching and updating Pi settings endpoints
- Replace PiExtensionsManager with package management UI and add supporting dashboard styles
- Rewrite and fix PiExtensionsManager tests and include a changeset for @gsxdsm/fusion
- Create a dedicated PiExtensionsManager component mirroring PluginManager interaction patterns
- Replace inline Pi extensions rendering in SettingsModal with the new manager component
- Add PiExtensionsManager styling in styles.css to match existing plugin manager layout and states
- Add component test coverage for PiExtensionsManager and update SettingsModal mocks/assertions
- Add a changeset for the pi-extensions UI parity release
