Harden Panama launcher actions

setup/scripts/link-vicinae-scripts

@@ -11,14 +11,27 @@ vicinae_data_dir="${VICINAE_DATA_DIR:-$HOME/.local/share/vicinae}"
 source_dir="$panama_path/config/local/share/vicinae/scripts"
 scripts_dir="$vicinae_data_dir/scripts"
 target_dir="$scripts_dir/panama"
-backup_dir="$scripts_dir/panama.pre-panama"
+backup_root="$vicinae_data_dir/backups"
+backup_dir="$backup_root/panama.pre-panama"
+legacy_backup="$scripts_dir/panama.pre-panama"
 
 [[ -d "$source_dir" ]] || {
     printf 'Panama command source is missing: %s\n' "$source_dir" >&2
     exit 1
 }
 
-mkdir -p "$scripts_dir"
+mkdir -p "$scripts_dir" "$backup_root"
+
+# Older Panama builds preserved this directory alongside searchable commands.
+# Move it out before reloading so those scripts cannot appear twice.
+if [[ -e "$legacy_backup" ]]; then
+    if [[ -e "$backup_dir" ]]; then
+        printf 'Refusing to move %s; backup already exists at %s\n' \
+            "$legacy_backup" "$backup_dir" >&2
+        exit 1
+    fi
+    mv "$legacy_backup" "$backup_dir"
+fi
 
 if [[ -L "$target_dir" ]]; then
     rm "$target_dir"