codex cf4be716e1 CUST-WP-0054 T01-T03: fleet architecture, de-hub runbook, drain plan ...

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).

2026-07-04 00:29:55 +02:00

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