Reuse the existing URL-scoped registry credential lookup for every Node.js mirror request instead of introducing a separate authentication setting.
This covers release indexes, SHASUMS files and signatures, and runtime archives in both implementations while retaining longest-path-prefix scoping and cross-origin redirect protections. Authenticated checksum metadata bypasses the URL-keyed disk cache so it cannot cross credential contexts.
Closespnpm/pnpm#14334.