feat: added setup script to generate volume directories

setup.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+volumes_root="./volumes"
+volumes=(
+    filebrowser
+)
+
+mkdir -p "$volumes_root"
+for volume in "${volumes[@]}"; do
+    volume_path="$volumes_root/$volume"
+    if [ ! -d "$volume_path" ]; then
+        mkdir -p "$volume_path"
+        echo "Created volume directory: $volume_path\n"
+    else
+        echo "Volume directory already exists: $volume_path\n"
+    fi
+done