Undo/Redo support for AI Builder in Workflows

What's New
The AI Builder in workflows now supports Undo and Redo. AI generated or edited version of your workflow is recoverable, so you never lose a previous state while building with AI.
Hit Ctrl+Z (Cmd+Z on Mac) to instantly revert to the previous AI generated version in the same session. Ctrl+Y (Cmd+Y on Mac) brings the newer version back. This works across all AI generated changes, adding new actions, editing existing steps, or restructuring entire flows.
How to Use
Open the Workflow Builder and create or edit a workflow using AI.
Use Ctrl+Z (Cmd+Z on Mac) to undo the last AI generated change and restore the previous version in the same session
Use Ctrl+Y (Cmd+Y on Mac) to redo and bring back the change you just undid.
Every version is preserved in your undo history as you continue building during the session
You can also refer to the recent change tab in the top right corner in workflow builder 
Why This Matters
Version safety removes the main friction point of iterating with AI, the risk of losing a working state. You can now experiment freely with AI suggestions, explore different approaches, and roll back instantly when a result doesn't fit, keeping the workflow building process fast and flexible.