修复了rosbag录制服务崩溃的bug

scripts/lbot_arm_control.sh

@@ -66,19 +66,19 @@ start_bag_recorder() {
   echo "Rosbag log: ${BAG_LOG_FILE}"
 
   : > "${BAG_LOG_FILE}"
-  setsid bash -lc "
+  setsid env WS_DIR="${WS_DIR}" bash -lc '
     set -euo pipefail
     set +u
-    source '${WS_DIR}/install/setup.bash'
+    source "${WS_DIR}/install/setup.bash"
     set -u
     while true; do
-      start_time=\\\$(date +%Y%m%d_%H%M%S)
-      output=/tmp/lbot_arm_\\${start_time}.mcap
-      echo \"Starting rosbag: \\${output}\"
+      start_time=$(date +%Y%m%d_%H%M%S)
+      output=/tmp/lbot_arm_${start_time}.mcap
+      echo "Starting rosbag: ${output}"
       set +e
       timeout 3600 ros2 bag record \
         --storage mcap \
-        --output \"\\${output}\" \
+        --output "${output}" \
         --polling-interval 2 \
         --include-unpublished-topics \
         --disable-keyboard-controls \
@@ -92,13 +92,13 @@ start_bag_recorder() {
         --services \
           /robot1/left_arm/move_joint \
           /robot1/right_arm/move_joint
-      rc=\\$?
+      rc=$?
       set -e
-      if [[ \\${rc} -ne 124 ]]; then
-        exit \\${rc}
+      if [[ ${rc} -ne 124 ]]; then
+        exit ${rc}
       fi
     done
-  " >> "${BAG_LOG_FILE}" 2>&1 &
+  ' >> "${BAG_LOG_FILE}" 2>&1 &
 
   local pid=$!
   local pgid