Initial commit: complete WebsiteBox project

Docker-based self-hosted WordPress deployment system with:
- Four-container stack (nginx, wordpress/php-fpm, mariadb, certbot)
- Automatic SSL via Let's Encrypt with self-signed fallback
- First-boot WordPress setup via WP-CLI (GeneratePress + child theme, plugins)
- Interactive setup wizard and one-line install script
- Backup, update, healthcheck, and SSL renewal scripts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/ssl-renew.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -eo pipefail
+
+# WebsiteBox SSL Renewal Helper
+# Manually triggers a certificate renewal attempt via the certbot container.
+# Automatic renewals are handled by the certbot container's built-in loop.
+# Use this script only if you need to force an immediate renewal.
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
+
+echo "Requesting certificate renewal..."
+docker compose -f "${PROJECT_DIR}/docker-compose.yml" exec certbot \
+    certbot renew --deploy-hook "touch /var/run/certbot-signal/reload"
+
+echo "Renewal attempt complete. Check logs for details:"
+echo "  docker compose logs certbot"