List all organizations with credentials, key settings, and high-level usage.

Super admin only. Usage is served from the same pre-aggregated rollups the analytics dashboard reads — content counts from a single grouped query over content and 30-day views from metrics_hourly (Σ views_count over the trailing window, matching metrics._rollup_total_views). Both are one grouped query for the whole list — no per-org fan-out. Orgs without rollup rows report 0 views (the list does not fall back to the expensive live path).