macOS desktop regression: integrated terminal cannot be opened via button or Ctrl+`

Summary

After updating the ChatGPT desktop app, the Codex integrated terminal could not be opened at all. Neither the terminal-panel button nor `Ctrl+`` had any effect.

Environment

• macOS
• Failing app: ChatGPT desktop 26.831.20005 (build 7524)
• Failing bundled app-server runtime: 0.152.0
• Last known working app restored with Time Machine: 26.803.41515 (build 6321)
• Working bundled app-server runtime: 0.147.0-alpha.6.5
• Codex task: Local environment

Steps to reproduce

1. Update to ChatGPT desktop 26.831.20005 (build 7524).
2. Open a Codex local task.
3. Click the integrated-terminal button, or press `Ctrl+``.

Expected behavior

The integrated terminal panel opens.

Actual behavior

Nothing opens. The same failure occurs through both the button and the documented keyboard shortcut.

Evidence

• The same machine, local task, and configuration work immediately after restoring 26.803.41515 (build 6321) with Time Machine.
• During the failure, app logs did not show a terminal-open event or any PTY/shell-spawn failure. This suggests the regression is in the desktop UI trigger/render path, rather than shell initialization or the Codex CLI.
• I did not attach raw logs because they may contain sensitive information. I can provide redacted logs or a feedback session ID if needed.

Impact

The integrated terminal is completely unavailable in the affected desktop build.

Start by reproducing the failure in ChatGPT desktop 26.831.20005 with a Codex local task, using both the terminal-panel button and Ctrl+`. Compare behavior with the restored 26.803.41515 build and inspect the desktop UI trigger path and bundled app-server runtime. Done means the integrated terminal panel opens through both entry points without requiring shell or PTY changes.