MechaCat02 ebc1966103 chore: run containers as non-root, add HEALTHCHECK, npm ci ...

Backend: new `app` user (UID 10001), STORAGE_DIR pre-chowned so the
named volume inherits ownership, curl installed for the HEALTHCHECK
that pings /api/v1/health. The crawler's Chromium uses --no-sandbox
already so dropping privileges costs nothing operationally.

Frontend: switch `npm install` to `npm ci` (matches CI; deterministic
versions; refuses to silently rewrite package-lock.json mid-build).
Run as the built-in `node` user via --chown=node:node, add a busybox
wget HEALTHCHECK on port 3000.

Both images now expose container-level health so orchestrators can
take a wedged container out of rotation instead of letting it keep
serving timeouts.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-28 20:24:05 +02:00

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