Add debug logging to queue manager

vidai/queue.py

@@ -128,21 +128,23 @@ class QueueManager:
 
     def _process_queue(self) -> None:
         """Background thread to process queued jobs."""
+        print("Queue manager started", flush=True)
         while self.running:
             try:
                 with self.lock:
                     if self.active_jobs < self.max_concurrent:
                         pending = get_pending_queue_items()
                         if pending:
+                            print(f"Found {len(pending)} pending job(s)", flush=True)
                             job = pending[0]  # Get highest priority job
                             if self._can_start_job(job):
                                 self._start_job(job)
                             else:
-                                print(f"Job {job['id']} waiting for available workers")
+                                print(f"Job {job['id']} waiting for available workers", flush=True)
 
                 time.sleep(1)  # Check every second
             except Exception as e:
-                print(f"Queue processing error: {e}")
+                print(f"Queue processing error: {e}", flush=True)
                 time.sleep(5)
 
     def _start_job(self, job: Dict[str, Any]) -> None: