Add traffic lane GPS weighting toolkit

tools/discover_traffic_resources.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [[ $# -lt 1 ]]; then
+  echo "usage: $0 <archive-file-or-dir> [output-list]" >&2
+  exit 2
+fi
+
+archive_path=$1
+output=${2:-traffic-resources.txt}
+container=${CP77_TOOLBOX_CONTAINER:-2077}
+tool='${HOME}/.dotnet/tools/cp77tools'
+
+toolbox run --container "${container}" bash -lc \
+  "${tool} archive --list --regex 'traffic.*persistent|persistent.*traffic|traffic.*lane|world.*traffic' '$archive_path'" \
+  > "${output}"
+
+echo "wrote ${output}"