- Introduced a comprehensive specification for renaming `searchSpace` to `workspace` in `surfsense_web` and `surfsense_desktop`, ensuring all TypeScript identifiers, React props, and local data structures are updated.
- Implemented migration shims for persisted local state to prevent data loss during the transition.
- Updated observability metrics and IPC channels to reflect the new naming convention.
- Removed legacy `active-search-space` module and replaced it with `active-workspace` to maintain consistency.
- Ensured no behavioral changes or data loss for users during the renaming process.
- Added the ability to archive and unarchive chat threads, enhancing user interaction with chat items.
- Introduced a new `handleChatArchive` function to manage the archiving state and provide user feedback via toast notifications.
- Updated the `ChatItem` type to include an `archived` property for tracking the archive status.
- Modified relevant components to support the new archiving feature, including `ChatListItem`, `Sidebar`, and `MobileSidebar`.
