EngineBridge built its StreamingEngine without ever calling
set_node_positions, so the governed fuser placed every node at the
origin even when --node-positions was set. Startup now passes the same
keyed map the sibling multistatic_fuser gets, via
EngineBridge::with_node_positions. The fuser resolves positions by
node_id per frame, so nodes discovered later need no extra call.
/api/v1/status (and /health/ready) now reports the map under
trust.node_positions so the configuration can be checked at runtime.
Co-Authored-By: claude-flow <ruv@ruv.net>
