Grounded assessment that the relay service is pre-production (every cross-package
seam is a fail-closed stub, no server/TLS/DB/orchestration). Documents the target
topology + trust boundaries, the 7 wiring gaps to close (P1 socket server, P5
injection into P1/P3, pg/redis stores, real KMS CA custody, agent/relay-web build,
F2 principal + F6 replay-epoch residuals), a phased build order (dev-run → staging
→ prod), an accurate per-service env reference, infra checklist, and an ops runbook.