Add history navigation for AI-generated notes

[jspada200]

Summary

Persist AI-generated note outputs in the frontend and let users move backward and forward through prior generations with chevron controls.

Details

When a new AI-generated note arrives, it should be stored client-side. Replacing it with a newer generation should retain the previous version in history. The notes UI should expose forward/back chevrons (or equivalent) to cycle through stored versions without losing data on refresh behavior as defined by product (local-only vs synced — scope as needed).

Likely area: note editor / AI note panel and related state (React app).

Acceptance criteria

• New AI-generated notes are appended or replace the “current” slot while preserving prior generations in an ordered history
• User can navigate backward/forward through AI note versions via explicit controls (e.g. chevrons)
• Current selection is clear in the UI (which version is shown)
• All changes tested locally
• All relevant automated tests complete successfully
• Verified no existing workflows broken
• For UI changes, screenshots or gif animations of the changes included
• Steps to test included in PR

Suggested labels

enhancement, Frontend