Improve TUI to include an 'overview' panel in order to see completed and remaining tasks

What variant of Codex are you using?

0.118.0

What feature would you like to see?

For long running tasks, e.g. if you use a ralph loop or just otherwise long running tasks for several hours you often lose track of what codex is currently working on. I don't want to bring up opencode to much, I know I can switch to opencode, but I prefer otherwise using Codex. The TUI Design though is just hindering that I am able to steer codex correctly with a complex task after a period of time since I lose track what it's currently doing.
This is also very important for subagents. So on the right side one should see everything that your main agent and subagents are currently tasked with and you should be able to easily add or remove tasks or to update the task list after you talked to the agent.

In OpenCode it's solved via a clear overview panel on the right so you can see the MCP server, and also the completed and opentasks.
Especially the opentasks to be always present is super important, this way you can add, remove and steer the agent way better, don't give instruction twice, don't interrup the agent while working just to ask what it's doing etc.

<img width="1282" height="688" alt="Image" src="https://github.com/user-attachments/assets/70a9829a-5fae-4788-acf6-da855998149d" />

It would be great if you could consider improving the TUI to also include an overview or 'steering' panel on the right so agent steering with open and future tasks is possible.

It would also be great to have an /addtask command or /renewtasklist

Additional information

_No response_