✨ 添加对主流框架的消息io支持

src/nonebot_plugins/liteyuki_statistics/data_source.py

@@ -69,6 +69,8 @@ async def get_stat_msg_image(
         condition,
         *condition_args
     )
+    if not msg_rows:
+        msg_rows = []
     timestamps = []
     msg_count = []
     msg_rows.sort(key=lambda x: x.time)

src/nonebot_plugins/liteyuki_statistics/stat_matchers.py

@@ -98,8 +98,10 @@ async def _(result: Arparma, event: T_MessageEvent, bot: Bot):
     bot_id = result.other_args.get("bot_id")
     user_id = result.other_args.get("user_id")
 
-    if group_id in ["current", "c"]:
+    if group_id in ["current", "c"] and hasattr(event, "group_id"):
         group_id = str(event_utils.get_group_id(event))
+    else:
+        group_id = "all"
 
     if group_id in ["all", "a"]:
         group_id = "all"