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>

wordpress/wp-config-docker.php

@@ -0,0 +1,26 @@
+<?php
+/**
+ * WebsiteBox WordPress Configuration (Extra Settings)
+ *
+ * This file is included by the auto-generated wp-config.php from the official
+ * WordPress Docker image. It must NOT redefine DB constants, $table_prefix,
+ * auth keys/salts, or call wp-settings.php — those are all handled by the
+ * parent wp-config.php.
+ */
+
+// Security hardening
+define('DISALLOW_FILE_EDIT', true);
+define('FORCE_SSL_ADMIN', true);
+define('WP_POST_REVISIONS', 10);
+define('WP_AUTO_UPDATE_CORE', 'minor');
+
+// Debug settings (disabled in production)
+define('WP_DEBUG', false);
+define('WP_DEBUG_LOG', false);
+define('WP_DEBUG_DISPLAY', false);
+
+// WordPress URLs
+if (getenv('DOMAIN')) {
+    define('WP_HOME', 'https://' . getenv('DOMAIN'));
+    define('WP_SITEURL', 'https://' . getenv('DOMAIN'));
+}