Monitoring compose profile: dependency-free Prometheus exporter that
scans the Parquet output with DuckDB (rows, detections, pose frames,
battery, RSSI, link distance, bytes on disk), Prometheus scrape config
and a provisioned Grafana dashboard. Demonstrates the observability
doctrine: fleet statistics derived from the data platform itself.
Replace object-store replication with rsync over persistent multiplexed
SSH (ed25519, pinned known_hosts, forced commands as the only remote
API); demote GraphQL to the ground integration standard. Add DuckDB
spatial extension for separation audits, perimeter predicates and
trajectory analysis in the local planar frame.