feat: add systemd files from NUC

auto_start/auto_start_core_headless.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# Wait for a network interface to be up (not necessarily online)
+while ! ip link show | grep -q "state UP"; do
+    echo "[INFO] Waiting for active network interface..."
+    sleep 1
+done
+
+echo "[INFO] Network interface is up!"
+
+# Your actual ROS node start command goes here
+echo "[INFO] Starting ROS node..."
+
+# Source ROS 2 Humble setup script
+source /opt/ros/humble/setup.bash
+
+# Source your workspace setup script
+source /home/clucky/rover-ros2/install/setup.bash
+
+# CD to directory
+cd /home/clucky/rover-ros2/
+
+# Launch the ROS 2 node
+ros2 run core_pkg headless