npm package health API: dependency-hygiene facts straight from the npm registry — latest version, all dist-tags, last-mo

npm package health API: dependency-hygiene facts straight from the npm registry — latest version, all dist-tags, last-modified timestamp, total published versions, deprecation status with message, runtime dependency count, and weekly downloads. For scoped packages, URL-encode the slash in the name. Use for dependency auditing, supply-chain security checks, version freshness, and update agents maintaining package.json. Cached up to 1 hour per package.