fix logic and tests, update docker CI file

app/old/NotificationService.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace App\Services;
+
+use CodeIgniter\Events\Events;
+
+class NotificationService
+{
+    /**
+     * Trigger a notification event by type and payload.
+     *
+     * @param string $eventType  The name of the event (e.g., 'userRegistered')
+     * @param array  $payload    The data to pass to the listener
+     * @return void
+     */
+    public static function trigger(string $eventType, array $payload): void
+    {
+        Events::trigger($eventType, $payload);
+    }
+
+    /**
+     * Helper for sending to a specific user.
+     *
+     * @param int    $userId
+     * @param string $title
+     * @param string $message
+     * @param array  $channels
+     * @return void
+     */
+    public static function toUser(int $userId, string $title, string $message, array $channels = ['in_app']): void
+    {
+        self::trigger('customNotification', [
+            'user_id'  => $userId,
+            'title'    => $title,
+            'message'  => $message,
+            'channels' => $channels
+        ]);
+    }
+}