Add a "Notes" tab next to Diff/Logs for task-specific note taking or writing down reminders

What variant of Codex are you using?

Web

What feature would you like to see?

I’d love to see a new "Notes" tab added to the top navigation bar, right alongside the existing Diff and Logs tabs. When I'm reviewing a big implementation across different tasks, I often come across things I need to double-check or questions I want to ask the AI later(especially if I'm reviewing it on my phone), so it would be nice to have a note tab that will serve as a scratchpad for each tasks.

What I would expect this tab to allow:

1. Quick Jotting: A place to write down "Don't forget to update the README" or "Check if this client handles timeouts" while looking at the code.
2. AI Follow-ups: A spot to draft specific questions for the AI so I don't lose my train of thought while jumping between different tasks.
3. Pre-PR Checklist: A way to keep track of what’s left to do before I actually hit "Create PR."

<img width="1347" height="906" alt="Image" src="https://github.com/user-attachments/assets/358ba2c6-4210-496d-82a5-c381f4fd1405" />

Additional information

_No response_