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>

includes/class-itk-honeypot.php

@@ -174,13 +174,15 @@ class ITK_Honeypot {
     }
 
     private function log_block(string $form_type, string $reason): void {
-        ITK_Database::log_honeypot([
+        $event = [
             'ip'     => $this->get_ip(),
             'form'   => $form_type,
             'reason' => $reason,
             'uri'    => $_SERVER['REQUEST_URI'] ?? '',
             'ua'     => $_SERVER['HTTP_USER_AGENT'] ?? '',
-        ]);
+        ];
+        ITK_Database::log_honeypot($event);
+        ITK_HP_API::queue($event);
     }
 
     public function validate_comment(array $comment_data): array {