[Feature]: Control-Z should background auggie

[tbvdloo]

What would you like to be added?

Control-Z should background auggie. Most CLI coding agents do this, auggie does not. The expected workflow is: control-z to get back to the shell, fg to get back in the auggie coding agent.

Behavior in auggie:

Control-z -> does nothing

Behavior in opencode when control-z is pressed:

[agent@agent3 ai-shared-skills]$ opencode

[1]+  Stopped                    opencode
[agent@agent3 ai-shared-skills]$ jobs
[1]+  Stopped                    opencode
[agent@agent3 ai-shared-skills]$ fg # fg to foreground coding agent again

And in Claude:

[agent@agent3 ai-shared-skills]$ claude
Claude Code has been suspended. Run `fg` to bring Claude Code back.──────────────────────────────────────────────────────────────────────
Note: ctrl + z now suspends Claude Code, ctrl + _ undoes input.                                                       ◉ xhigh · /effort

[1]+  Stopped                    claude
[agent@agent3 ai-shared-skills]$ jobs
[1]+  Stopped                    claude
[agent@agent3 ai-shared-skills]$ fg # fg to foreground coding agent again

Why is this needed?

Backgrounding the coding agent is a useful worfklow.

Possible solution or alternatives

Making it so that control-z backgrounds the process.

Additional context

No response