Notion ticket: https://www.notion.so/cleanlab/Mutative-tool-fallback-responses-2c0c7fee85be80b19645df046150bc08?source=copy_link

This PR re-introduces mutative tools by fixing the issue of guardrailed responses after mutative tools => user doesn't know that mutative action was done.

Example of issue:

Fix is to have the develop provide a template fallback for each mutative tool. If final response is guardrailed, collate the fallbacks for each tool into one response e.g.

TODO: Codex backend needs to be updated to take the developer's fallback response and show that instead of the Cleanlab fallback to maintain visibility. That will be fixed by this ticket: https://www.notion.so/cleanlab/Mutative-tool-fallback-responses-2c0c7fee85be80b19645df046150bc08?source=copy_link