Rename schemas/search_space.py -> schemas/workspace.py, the SearchSpace* classes
-> Workspace* (incl. UserSearchSpaceAccess -> UserWorkspaceAccess), and the
search_space_id / search_space_name fields -> workspace_id / workspace_name across
all schema modules. Under hard cutover the serialized JSON keys change outright
(no alias). Re-exports in schemas/__init__.py updated.
- improved search_knowledgebase_tool
- Added new endpoint to batch-fetch comments for multiple messages, reducing the number of API calls.
- Introduced CommentBatchRequest and CommentBatchResponse schemas for handling batch requests and responses.
- Updated chat_comments_service to validate message existence and permissions before fetching comments.
- Enhanced frontend with useBatchCommentsPreload hook to optimize comment loading for assistant messages.
