Add missing auto-sync.sh script for server updates

auto-sync.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# Auto-sync script for Web-Page-Performance-Test
+# This script is run by cron every 5 minutes
+
+LOG_FILE="/var/log/Web-Page-Performance-Test-autosync.log"
+
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" >> "$LOG_FILE"
+}
+
+# Fetch latest changes
+git fetch origin main
+
+# Check if we are behind
+LOCAL=$(git rev-parse HEAD)
+REMOTE=$(git rev-parse origin/main)
+
+if [ "$LOCAL" != "$REMOTE" ]; then
+    log "Updates detected. Pulling..."
+    
+    # Pull changes
+    git pull origin main >> "$LOG_FILE" 2>&1
+    
+    # Install dependencies if package.json changed
+    if git diff --name-only "$LOCAL" "$REMOTE" | grep -q "package.json"; then
+        log "package.json changed. Installing dependencies..."
+        npm install --production >> "$LOG_FILE" 2>&1
+    fi
+    
+    # Restart service
+    log "Restarting service..."
+    systemctl restart Web-Page-Performance-Test
+    
+    log "Update complete. New version: $(git rev-parse --short HEAD)"
+else
+    # No changes, do nothing (silent to avoid log spam)
+    :
+fi