- firmware: wire on-device motion hints to websocket_send_motion_hint()
with 1s rate-limit; csi_set_rate() now writes to g_state.packet_rate
- firmware: websocket_send_motion_hint() sends variance + MAC + timestamp
to mothership so rate controller ramps ahead of server-side detection
- mothership: RateController.OnMotionHint() preemptively ramps adjacent
nodes via SetAdjacentNodesFn callback (topology-aware burst propagation)
- mothership: idle timeout extended to 30s; variance_threshold=0 in active
mode (server handles detection), DefaultVarianceThreshold=1.0 in idle
- mothership: SendRoleToMAC() exposes dynamic role changes post-connect
- mothership: SendOTAToMAC() enables pushing firmware updates to nodes
- mothership: OTA status events are now logged with state and progress %
Protocol is backward-compatible: binary CSI frames work as in Phase 1;
JSON control messages are additive on the same single WebSocket per node.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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