"One postgres, one lavinmq" (ADR 0078) holds only by genesis assigning the
adopted modules to the control-node alone; nothing enforces it. A second assign
raises a divergent second server, silently. Open questions: a mesh-scoped
exclusive seat, or explicit adoption the controller refuses to place elsewhere.
https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx
