fix: close internal semantic review gaps

scripts/vector-restore.sh

@@ -30,15 +30,26 @@ done
 [ -r "$input" ] || { echo "backup input is not readable" >&2; exit 2; }
 
 expected_volume_name="${project_name}_${volume_role}"
+script_dir=$(CDPATH= cd "$(dirname "$0")" && pwd)
+. "$script_dir/lib/vector-operation-lock.sh"
+vector_operation_lock_init
 private_archive_dir=
 private_archive_path=
+restart_qdrant=0
 cleanup() {
   status=$?
+  trap - EXIT HUP INT TERM
   if [ -n "${private_archive_dir:-}" ] && [ -d "${private_archive_dir:-}" ]; then
     rm -rf "$private_archive_dir"
   fi
   if [ "${restart_qdrant:-0}" -eq 1 ]; then
-    docker compose --project-name "$project_name" start qdrant >/dev/null
+    if ! docker compose --project-name "$project_name" start qdrant >/dev/null; then
+      echo "Unable to restart Qdrant after restore" >&2
+      [ "$status" -ne 0 ] || status=1
+    fi
+  fi
+  if ! release_vector_operation_lock; then
+    [ "$status" -ne 0 ] || status=1
   fi
   exit "$status"
 }
@@ -219,11 +230,11 @@ validate_archive_paths
 validate_archive_types
 validate_archive_manifest
 
+acquire_vector_operation_lock
 volume_name=$(resolve_volume)
 validate_volume_metadata "$volume_name"
 
 running_container=$(docker compose --project-name "$project_name" ps --status running -q qdrant)
-restart_qdrant=0
 
 if [ -n "$running_container" ]; then
   docker compose --project-name "$project_name" stop qdrant >/dev/null