Display active Project/Session name in Desktop App window title

What variant of Codex are you using?

App

What feature would you like to see?

Use Case

In order to use the Codex Desktop App alongside automated time-tracking tools like Timing, RescueTime, Toggl, the Codex window title needs to reflect the specific project or session name so that these tools can automatically categorize work segments. This is currently not possible.

By exposing the project name in the window title, Codex becomes compatible with the macOS/Windows Accessibility APIs that these productivity tools rely on.

Description

I would like the window title of the Codex Desktop App to dynamically update to reflect the current active project or session.

• Current Behavior: The window title does not specify the project context.
• Requested Behavior: The window title should follow a format such as [Project Name] — Codex or Codex - [Session Title].

Technical Context

• This is closely related to the broader titling efforts in #9849, but specifically addresses the Desktop GUI's top-level window property rather than internal tab labels.
• Updating the NSWindow title (macOS) or HWND text (Windows) allows external "observer" apps to distinguish between different work contexts without needing direct API integration.

Additional Benefits

• Easier navigation when using the OS-level App Switcher (Cmd+Tab / Alt+Tab) with multiple Codex windows open.
• Improved organization for users juggling multiple concurrent projects.

Additional information

_No response_