Add regular user spark and clone-sparkos.sh script, default to non-root login

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

rootfs/home/spark/.profile

@@ -0,0 +1,12 @@
+# SparkOS User Shell Configuration
+
+# Set prompt
+PS1='SparkOS:\w\$ '
+
+# Aliases
+alias ll='ls -lah'
+alias ..='cd ..'
+
+# Environment
+export EDITOR=vi
+export PAGER=less

rootfs/home/spark/clone-sparkos.sh

@@ -0,0 +1,50 @@
+#!/bin/sh
+# SparkOS CLI Installation Script
+# This script clones the SparkOS CLI repository
+
+echo "SparkOS CLI Installation"
+echo "========================"
+echo ""
+
+SPARK_REPO="https://github.com/johndoe6345789/spark-cli.git"
+INSTALL_DIR="$HOME/spark-cli"
+
+echo "This script will clone the SparkOS CLI to: $INSTALL_DIR"
+echo ""
+
+# Check if git is available
+if ! command -v git >/dev/null 2>&1; then
+    echo "Error: git is not installed"
+    echo "Please install git to continue"
+    exit 1
+fi
+
+# Check if directory already exists
+if [ -d "$INSTALL_DIR" ]; then
+    echo "Warning: $INSTALL_DIR already exists"
+    echo -n "Do you want to remove it and re-clone? (y/N): "
+    read answer
+    if [ "$answer" = "y" ] || [ "$answer" = "Y" ]; then
+        rm -rf "$INSTALL_DIR"
+    else
+        echo "Installation cancelled"
+        exit 0
+    fi
+fi
+
+# Clone the repository
+echo "Cloning spark CLI repository..."
+if git clone "$SPARK_REPO" "$INSTALL_DIR"; then
+    echo ""
+    echo "SparkOS CLI cloned successfully!"
+    echo ""
+    echo "Next steps:"
+    echo "  1. cd $INSTALL_DIR"
+    echo "  2. Follow the installation instructions in the repository"
+    echo ""
+else
+    echo ""
+    echo "Error: Failed to clone repository"
+    echo "Please check your network connection and try again"
+    exit 1
+fi