Group game management was introduced as a new admin capability.

New controller and model classes were added for group game records, supported by a database migration and a new group management screen. Access handling was expanded so users can be blocked from unauthorized areas with a dedicated 403 page.

The group page was substantially refactored, the option and header views were adjusted, and API support was added so public activity v2 can use group game configuration during play.

Reference: d333d3d