Current identity (pack + billing plan)
Returns the authenticated tenant’s identity - tenant_id, user_id (when available), and the effective pack_slug / billing_plan_slug (override_* columns supersede the underlying ones, matching effective_identity semantics). The dashboard frontend calls this on SSR hydration via useAuthContext before any GraphQL round-trip.
Response
Identity returned
Identity-fetch response for the dashboard useAuthContext hydration.
Mirrors the auth-relevant subset of the tenant row plus the effective
pack identity (override_*-aware). Snake_case in REST per the project
convention; the GraphQL DashboardAccount aggregate exposes the
same scalars in camelCase via Strawberry's auto-conversion.