[CLI/TUI] Add an option to disable compact "Ran N commands" grouping

What variant of Codex are you using?

CLI (Codex CLI 0.149.0)

What feature would you like to see?

Please add a configuration option to disable the new compact command activity in the CLI TUI, where consecutive successful commands are grouped into entries such as:

<img width="348" height="39" alt="Image" src="https://github.com/user-attachments/assets/d980f6c3-91a0-4807-a294-23a34c3616ae" />

I would like to be able to restore the previous expanded behavior from 0.148.x, where individual commands and their activity are shown directly in the main TUI.

I often monitor Codex while it is actively working. Seeing which files it is inspecting, which commands it is running, when it runs tests, and what those commands return makes it much easier to understand and supervise the agent's work in real time.

Ctrl+T is useful for reviewing the transcript afterwards, but it is significantly less convenient for continuously following what the agent is doing.

The compact behavior can remain the default. I am only requesting an opt-out setting, for example:

[tui]
compact_command_activity = false

This would preserve the cleaner compact UI for users who prefer it while allowing users who value real-time visibility into agent activity to keep the previous workflow.

Additional information

This behavior appeared after upgrading from Codex CLI 0.148.x to 0.149.0 and seems to correspond to the new compact successful command activity behavior introduced in #38921.