feat: add crontab function to automatically run services

utils.sh

@@ -68,4 +68,18 @@ function env_variable() {
 		echo "$key=$value" >> "$ENV_FILE"
 		log_success "$key created."
 	fi
+}
+
+function add_crontab() {
+	if ! command -v crontab >/dev/null 2>&1; then
+        log_error "Error: crontab not found."
+    fi
+
+    CRON_JOB=$1
+    crontab -l 2>/dev/null | grep -F "$CRON_JOB" > /dev/null 2>&1
+	
+    if ! crontab -l 2>/dev/null | grep -Fq "$CRON_JOB"; then
+        (crontab -l 2>/dev/null; echo "$CRON_JOB") | crontab -
+        log_success "Cron job added."
+    fi
 }