Broken-URL sweep — 64 dead documentation and pricing links repaired
URL-liveness audit surfaced 64 × HTTP 404 responses across 11 providers — dominated by URL patterns invented for services added during the recent vendor-triage arc plus a handful of vendor doc reorganisations (Oracle moved several OCI docs, Azure retired some pricing pages). Every broken URL now falls back to the provider's documentationBaseUrl (docs) or homepage (pricing), so no service card ships a dead link. Fixing to correct per-service URLs remains a background polish task.