feat：为normal_chat提供选项，有效控制回复频率

src/chat/normal_chat/normal_chat_utils.py

@@ -0,0 +1,33 @@
+import time
+from src.config.config import global_config
+from src.common.message_repository import count_messages
+
+
+def get_recent_message_stats(minutes: int = 30, chat_id: str = None) -> dict:
+    """
+    Args:
+        minutes (int): 检索的分钟数，默认30分钟
+        chat_id (str, optional): 指定的chat_id，仅统计该chat下的消息。为None时统计全部。
+    Returns:
+        dict: {"bot_reply_count": int, "total_message_count": int}
+    """
+
+    now = time.time()
+    start_time = now - minutes * 60
+    bot_id = global_config.bot.qq_account
+
+    filter_base = {"time": {"$gte": start_time}}
+    if chat_id is not None:
+        filter_base["chat_id"] = chat_id
+
+    # 总消息数
+    total_message_count = count_messages(filter_base)
+    # bot自身回复数
+    bot_filter = filter_base.copy()
+    bot_filter["user_id"] = bot_id
+    bot_reply_count = count_messages(bot_filter)
+
+    return {
+        "bot_reply_count": bot_reply_count,
+        "total_message_count": total_message_count
+    }