Documents the three-machine role model, fleet mesh topology, coulombcore
freeze policy, and ordered drain sequence. Adds railiance01 systemd tunnel
install assets and refreshes ops service inventory to reflect 2026-07-03
production placement (cluster State Hub, fleet mesh, draining coulombcore).
Seed a non-secret service inventory (environments, hosts, clusters,
services, endpoints, access paths, evidence, gaps) with a JSON schema,
a renderer, and a generated service-catalog view. Adds the
`make ops-inventory-view` target, probe ActivityDefinition, and docs.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
