Title: Feature Request: "Milestone Snapshots" for Safe Experimentation

Description: I recently successfully deployed a feature, but when I attempted to add Internationalization (i18n), the AI agent modified files across the entire codebase, breaking the application.

The Problem: Once the code broke, I had no easy way to revert to the exact state before the specific "Internationalization" prompt. I was stuck with a broken build and no clean rollback point.

The Proposed Solution: I need a "Milestone" or "Snapshot" feature.

Users should be able to save the code state (on the virtual environment/studio) before running a risky prompt.

If the new prompt breaks the code, the user can point the agent to "Revert back to Milestone X."

This allows developers to plan, rectify the prompt strategy, and try again without losing a stable production build.