chore: Bump plugin version to 1.0.8

Reflects comprehensive improvements made:
- Security vulnerability fixes (PHP Reflection, debug logging)
- Performance optimizations (query caching, CSS consolidation)
- Monitoring systems (background jobs, query analysis)
- Enhanced error handling and logging

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

hvac-community-events.php

@@ -3,7 +3,7 @@
  * Plugin Name: HVAC Community Events
  * Plugin URI: https://upskillhvac.com
  * Description: Custom plugin for HVAC trainer event management system
- * Version: 1.0.7
+ * Version: 1.0.8
  * Author: Upskill HVAC
  * Author URI: https://upskillhvac.com
  * License: GPL-2.0+

includes/class-hvac-plugin.php

@@ -57,7 +57,7 @@ class HVAC_Plugin {
      */
     private function define_constants() {
         if (!defined('HVAC_PLUGIN_VERSION')) {
-            define('HVAC_PLUGIN_VERSION', '1.0.7');
+            define('HVAC_PLUGIN_VERSION', '1.0.8');
         }
         if (!defined('HVAC_VERSION')) {
             define('HVAC_VERSION', '1.0.7');