- Added new fields to the plugin and metadata types, including `mode`, `taskKind`, `surface`, and `preview`, to improve plugin description and categorization.
- Implemented a `previewFrom` function to generate structured previews for plugins based on their metadata, enhancing the user experience.
- Introduced a `visualKindFor` function to determine the visual representation of plugins based on their attributes, improving sorting and display logic.
- Updated the `entryFromMarketplace` and `officialEntryFromManifest` functions to accommodate the new fields and ensure proper handling of plugin entries.
- Created a new documentation file for the plugin system test suite, consolidating testing strategies and acceptance criteria for better clarity.
This update significantly enhances the plugin registry's capabilities, providing richer metadata and improved user interactions with plugin previews.
