Fix WC_Settings_Page class loading issue (v1.1.1)

Critical bug fix for settings page initialization:
- Changed hook from woocommerce_loaded to woocommerce_init
- woocommerce_loaded fires before WC_Settings_Page is loaded
- woocommerce_init ensures all WooCommerce core classes are available

This resolves the "Class WC_Settings_Page not found" fatal error
that prevented the plugin from activating successfully.

Version bumped from 1.1.0 to 1.1.1 (patch release).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

wc-composable-product.php

@@ -3,7 +3,7 @@
  * Plugin Name: WooCommerce Composable Products
  * Plugin URI: https://github.com/magdev/wc-composable-product
  * Description: Create composable products where customers select a limited number of items from a configurable set
- * Version: 1.1.0
+ * Version: 1.1.1
  * Author: Marco Graetsch
  * Author URI: https://example.com
  * License: GPL v3 or later
@@ -19,7 +19,7 @@
 defined('ABSPATH') || exit;
 
 // Define plugin constants
-define('WC_COMPOSABLE_PRODUCT_VERSION', '1.1.0');
+define('WC_COMPOSABLE_PRODUCT_VERSION', '1.1.1');
 define('WC_COMPOSABLE_PRODUCT_FILE', __FILE__);
 define('WC_COMPOSABLE_PRODUCT_PATH', plugin_dir_path(__FILE__));
 define('WC_COMPOSABLE_PRODUCT_URL', plugin_dir_url(__FILE__));
@@ -61,8 +61,8 @@ function wc_composable_product_init() {
     // Initialize main plugin class
     WC_Composable_Product\Plugin::instance();
 }
-// Use woocommerce_loaded to ensure WooCommerce classes are available
-add_action('woocommerce_loaded', 'wc_composable_product_init');
+// Use woocommerce_init to ensure all WooCommerce classes including settings are loaded
+add_action('woocommerce_init', 'wc_composable_product_init');
 
 /**
  * Activation hook