Add Borg local sync system service and configuration

config/ansible/templates/borg-backup.sh.j2

@@ -26,6 +26,7 @@ log() {
 # Telegram notification function
 send_telegram() {
     local message="$1"
+    local silent="${2:-false}"
 
     if [ -z "$TELEGRAM_BOT_TOKEN" ] || [ -z "$TELEGRAM_CHAT_ID" ]; then
         log "Telegram credentials not configured, skipping notification"
@@ -36,7 +37,8 @@ send_telegram() {
 {
     "chat_id": "$TELEGRAM_CHAT_ID",
     "text": "$message",
-    "parse_mode": "HTML"
+    "parse_mode": "HTML",
+    "disable_notification": $silent
 }
 EOF
 )
@@ -129,7 +131,7 @@ if [ $global_exit -eq 0 ]; then
 📊 Repository: {{ borg_repo_dir }}
 🕐 Completed: $(date '+%Y-%m-%d %H:%M:%S')
 
-All operations completed without errors."
+All operations completed without errors." "true"
 elif [ $global_exit -eq 1 ]; then
     log "Backup completed with warnings (exit code: $global_exit)"
     send_telegram "⚠️ <b>Borg Backup Warning</b>