Set repo Social preview image (Repo Card Template)

[kristenwomack]

Summary

Set the attached GitHub Repo Card Template image as the repository's Social preview image.

Details

• The image is a 1280×640 social card ("Repo Card Template").
• GitHub recommends leaving a ~40pt safe border around the important details so nothing gets cropped when the card is rendered on social platforms.
• The social preview is configured via repo Settings → General → Social preview → Upload an image (this is a Settings-UI action; it cannot be set through the API).

Action needed

1. Download/obtain the Repo Card Template PNG (to be added to this issue).
2. Upload it under Settings → Social preview for Azure/azure-dev.
3. Verify the preview renders correctly (no cropping of the logo/title).