feat: add Central API clients, bot rate limiting, and admin API UI

- Add ITK_HP_API and ITK_Bot_API static classes with queue/flush/cron
- Add WP-Cron (5 min) + shutdown flush for both API queues
- Bot Blocker and Honeypot now queue events to their respective APIs
- Admin: Bot Blocker tab gains Central Bot API settings panel
  (enable, URL, token, test connection, flush queue, historical sync)
- Admin: Honeypot tab gains Central Honeypot API settings panel
- Admin JS: AJAX handlers for Test Connection and Flush Now buttons
- Admin CSS: API card styles (status badge, notices, footer controls)
- Add .gitignore (excludes bot-api/ which lives in CloudHost/bot-api)

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

informatiq-toolkit.php

@@ -21,6 +21,8 @@ define('ITK_URL',      plugin_dir_url(__FILE__));
 define('ITK_BASENAME', plugin_basename(__FILE__));
 
 require_once ITK_PATH . 'includes/class-itk-database.php';
+require_once ITK_PATH . 'includes/class-itk-hp-api.php';
+require_once ITK_PATH . 'includes/class-itk-bot-api.php';
 require_once ITK_PATH . 'includes/class-itk-bot-blocker.php';
 require_once ITK_PATH . 'includes/class-itk-protection.php';
 require_once ITK_PATH . 'includes/class-itk-optimization.php';
@@ -39,6 +41,18 @@ class InformatiQ_Toolkit {
     }
 
     private function __construct() {
+        // Register custom cron interval (5 minutes)
+        add_filter('cron_schedules', function ($schedules) {
+            if (!isset($schedules['itk_5min'])) {
+                $schedules['itk_5min'] = ['interval' => 300, 'display' => 'Every 5 Minutes'];
+            }
+            return $schedules;
+        });
+
+        // Boot API cron flushers
+        ITK_HP_API::register_cron();
+        ITK_Bot_API::register_cron();
+
         new ITK_Bot_Blocker();
         new ITK_Protection();
         new ITK_Optimization();
@@ -137,6 +151,8 @@ class InformatiQ_Toolkit {
     }
 
     public static function deactivate() {
+        ITK_HP_API::clear_cron();
+        ITK_Bot_API::clear_cron();
         flush_rewrite_rules();
     }
 }