[macOS][Pets] Pet fog mask is oversized and shifts position

What version of the Codex App are you using (From “About Codex” dialog)?

26.721.81911 (5973)

What subscription do you have?

Fog initially appears far below the pet. Resizing the pet causes the fog to jump behind it, even though the sprite asset is unchanged.

What platform is your computer?

macOS: 26.5.2 (25F84)

What issue are you seeing?

<img width="708" height="828" alt="Image" src="https://github.com/user-attachments/assets/2033bcaa-b82f-4e20-9621-79f5dcd869e7" />
Fog initially appears far below the pet. Resizing the pet causes the fog to jump behind it, even though the sprite asset is unchanged.
<img width="426" height="476" alt="Image" src="https://github.com/user-attachments/assets/1035185a-d840-44c4-8bf4-7e373cbb702e" />

What steps can reproduce the bug?

Steps to reproduce

1. Show the Codex desktop pet.
2. Disconnect or reconnect an external display while the pet is visible.
3. Observe the pet after the display layout has updated.
4. The fog may become oversized, move below the pet, or otherwise become misaligned.
5. Resize the pet.
6. The fog changes position and usually moves back behind the pet.

Reproduction frequency

• High after connecting or disconnecting an external display.
• Intermittent during normal use.
• The issue is not reproduced on every attempt.

What is the expected behavior?

_No response_

Additional information

_No response_