macOS traffic-light window controls ignore clicks because title-bar drag region captures them

Environment

• Codex desktop: 26.715.31925 (build 5551)
• macOS: 26.5.2 (25F84)

Reproduction

1. Open the main Codex desktop window on macOS.
2. Move the pointer over the red, yellow, and green traffic-light controls.
3. The normal hover symbols appear, confirming that hover state is detected.
4. Single-click any of the three controls.

Actual behavior

None of the three controls performs its action. The window does not close, minimize, or zoom.

Double-clicking the yellow control is handled like a title-bar double-click: the window changes size/position and the right content pane reflows. This strongly indicates that the draggable title-bar hit region is capturing clicks over the native traffic-light controls.

Keyboard equivalents work normally:

• Cmd-W closes the window
• Cmd-M minimizes
• Control-Cmd-F toggles full screen
• Cmd-Q quits the app

The issue reproduces consistently across launches.

Expected behavior

The native traffic-light controls should receive clicks and close, minimize, or zoom the window.

Feedback reference

Codex feedback thread ID: 019f79e4-d0e9-7611-8cb7-512162552d5e

No diagnostic logs were uploaded.