Allow re-authentication or API key entry after reaching plan limits

What feature would you like to see?

When the CLI session reaches plan limits (e.g. 5-hour or 7-day cap), it should not terminate completely. Instead, it should allow:

• Entering a new API key, or
• Logging in with a different account, without losing the current session context.

The /logout command should also not act like quit. Instead, it should return to a state where I can provide new credentials and continue in the same session.

Are you interested in implementing this feature?

_No response_

Additional information

Currently, hitting plan limits stops the CLI entirely, leaving code edits unfinished.
This is disruptive, especially when Codex has partially modified code and the process stops mid-flow, leaving files inconsistent.
Supporting credential re-entry within the same session would make the tool more resilient and usable in real workflows.