删除实时行情、盘口深度和监控规则功能

Co-Authored-By: Claude <noreply@anthropic.com>

serve/backend/app/api/data.py

@@ -658,12 +658,6 @@ def clear_data(request: Request):
     # - 触发记录 alerts.jsonl
     from app.services import alert_store
     alert_store.clear(data_dir)
-    # - 待推送的实时通知队列 (进程内存)
-    qs = getattr(request.app.state, "quote_service", None)
-    if qs is not None:
-        with qs._lock:
-            qs._pending_alerts.clear()
-
     # 清除 Polars 缓存
     # 先 clear_cache 无条件清空内存 (refresh_cache 在磁盘无数据时会提前 return,
     # 导致 _enriched_cache 等旧数据残留 —— 清数据后看板仍显示旧数据的根因),