# NodeStatus.msg — Status of a single ROS2 node
#
# node_name      : Name of the monitored node (e.g., saltybot_bridge)
# status         : ALIVE, DEGRADED, DEAD
# last_heartbeat : Timestamp of last received heartbeat
# downtime_sec   : Seconds since last heartbeat
# restart_count  : Number of auto-restarts performed
#
string node_name
string status
int64 last_heartbeat_ms
float32 downtime_sec
uint32 restart_count