Merge main into feature/testing-framework

Resolved conflicts:
- package.json: Use version 0.1.15 from main
- wp-plugin-starter-template.php: Use version 0.1.15, keep Plugin class usage
- AGENTS.md: Merge both versions, keep CI/CD content
- .wiki/Architecture-Overview.md: Use .agents/ directory structure
- wiki/* files: Delete (moved to .wiki/)
- .agents/error-checking-feedback-loops.md: Keep from feature branch

Also includes:
- Renamed .ai-workflows/ to .agents/
- Renamed .ai-assistant.md to AGENTS.md
- Updated version to 0.1.15

wp-plugin-starter-template.php

@@ -3,7 +3,7 @@
  * Plugin Name: WordPress Plugin Starter Template
  * Plugin URI: https://www.wpallstars.com
  * Description: A comprehensive starter template for WordPress plugins with best practices for AI-assisted development.
- * Version: 0.1.13
+ * Version: 0.1.15
  * Author: Your Name & The WPALLSTARS Team
  * Author URI: https://www.wpallstars.com
  * License: GPL-2.0+
@@ -35,7 +35,7 @@ if ( ! defined( 'WPINC' ) ) {
 define( 'WP_PLUGIN_STARTER_TEMPLATE_FILE', __FILE__ );
 define( 'WP_PLUGIN_STARTER_TEMPLATE_PATH', plugin_dir_path( __FILE__ ) );
 define( 'WP_PLUGIN_STARTER_TEMPLATE_URL', plugin_dir_url( __FILE__ ) );
-define( 'WP_PLUGIN_STARTER_TEMPLATE_VERSION', '0.1.13' );
+define( 'WP_PLUGIN_STARTER_TEMPLATE_VERSION', '0.1.15' );
 
 // Use namespace imports instead of require_once.
 use WPALLSTARS\PluginStarterTemplate\Plugin;