Reads status.json written by the sergent (Escouade Défenseur)
from a Docker volume mount path. Used by the admin dashboard.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Reject all requests if HEALTH_TOKEN env var is undefined instead of
allowing unauthenticated access (fail-open → fail-closed).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Zero-dependency Node.js health endpoint exposing CPU, RAM, disk and
uptime metrics. Bearer token auth, Docker-ready (node:22-alpine).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>