Merge branch 'feature_2025/1028_event' into feature_bugfix/251104_event

* feature_2025/1028_event:
  实现多选重要性，采用逗号分隔

app.py

@@ -6599,7 +6599,14 @@ def api_get_events():
             query = query.filter_by(status=event_status)
         if event_type != 'all':
             query = query.filter_by(event_type=event_type)
+        # 支持多个重要性级别筛选，用逗号分隔（如 importance=S,A）
         if importance != 'all':
+            if ',' in importance:
+                # 多个重要性级别
+                importance_list = [imp.strip() for imp in importance.split(',') if imp.strip()]
+                query = query.filter(Event.importance.in_(importance_list))
+            else:
+                # 单个重要性级别
                 query = query.filter_by(importance=importance)
         if creator_id:
             query = query.filter_by(creator_id=creator_id)