plex gains a broker-bound tools/events runtime container (mesh-runtime-plex) alongside its server, and a never-throwing plex_reachable health probe. redis and postgres subscribe to their own lifecycle events in index.ts but declared no consumes — so the substrate never made the queue the runtime binds and it crashed on start (404). Declare the consume, as ADR 0046 requires. Proven end-to-end in the mesh-lab: assigned-plex and assigned-redis both green. Claude-Session: https://claude.ai/code/session_01LrgweAeERJYBg88c5cKDzF