bug fix

start.py

@@ -62,6 +62,9 @@ _maybe_start_scheduler()
 if os.environ.get("FLASK_DISABLE_SCHEDULER", "").lower() not in ("1", "true", "yes"):
     start_watchdog(app, db_url)
 
+# 跨 worker SSE 广播（PG LISTEN/NOTIFY）：控制端的事件能到达任意 worker 的显示端
+app.event_bus.attach(db_url)
+
 
 if __name__ == "__main__":
     import atexit