fix: check queue pause status before processing jobs

Worker::runNextJob() now checks WPQueue::isPaused() before
attempting to process jobs from the queue.

Author: Алексей Тихомиров

src/Worker.php

@@ -51,6 +51,11 @@ public function daemon(string $queue = 'default', int $sleep = 3): void
      */
     public function runNextJob(string $queue = 'default'): bool
     {
+        // Check if queue is paused
+        if (WPQueue::isPaused($queue)) {
+            return false;
+        }
+
         // Check if we should stop before processing
         if ($this->shouldStop()) {
             return false;