Retrieves workspace metrics grouped by Revenium name for the authenticated user's organization.

Returns paginated workspace-level costs with aggregated usage metrics.

sort: totalCost (default, descending), providers, workspaceId,
workspaceName, percentage, requestCount, totalTokens, imageCount,
creditsApplied. These are the aggregate names, not the response field names, and an
unknown key fails the request with 400. Sort keys are case-sensitive.

A workspace charged in the period with no usage data counts as zero requests, tokens
and images, so it sorts last by any of the three descending and first ascending. The
response still omits token and image counts for these workspaces; request count is zero.

All costs are in USD. Token counts include all token types (input, output, cache).