Prioritize /opt/pangolin as default directory across backup, inspection, and remote testing

backend/backup.py

@@ -97,7 +97,7 @@ if [ ! -d "$P_DIR" ] || [ -z "$(ls -A "$P_DIR" 2>/dev/null)" ]; then
     echo "Searching VPS for Pangolin Docker compose stack..."
     DETECTED=$(docker inspect --format '{{{{index .Config.Labels "com.docker.compose.project.working_dir"}}}}' $(docker ps -aq --filter "name=pangolin" 2>/dev/null) 2>/dev/null | head -n 1)
     if [ -z "$DETECTED" ] || [ ! -d "$DETECTED" ]; then
-        for candidate in "$HOME/config" "/root/config" "$HOME" "/root" "$HOME/pangolin" "/root/pangolin" "/opt/pangolin"; do
+        for candidate in "/opt/pangolin" "$HOME/pangolin" "/root/pangolin" "$HOME/config" "/root/config" "$HOME" "/root"; do
             if [ -d "$candidate" ] && [ -n "$(ls -A "$candidate" 2>/dev/null)" ]; then
                 DETECTED="$candidate"
                 break