REST API was returning raw template strings like 'All
{objectLabelPlural}' instead of replaced values. GraphQL had proper
handling but REST controllers don't have access to DataLoaders.
Added minimal template replacement using WorkspaceMetadataCacheService
to replace {objectLabelPlural} placeholders with actual object labels.
No full translations since REST isn't priority for i18n.
addressing -
https://discord.com/channels/1130383047699738754/1412122807281651833