- Change MinIO healthcheck from `mc ready local` to curl-based probe
(`curl -sf http://localhost:9000/minio/health/live`) in both
docker-compose.yml and docker-compose.prod.yml, matching the
approach already used in docker-compose.ci.yml
- Add descriptive placeholder for REDIS_PASSWORD in .env.example
(was empty, now has CHANGE_ME_IN_PRODUCTION reminder)
Co-Authored-By: Paperclip <noreply@paperclip.ing>