Udpate history_dialogue_service: include endtime

pqai_agent/history_dialogue_service.py

@@ -75,7 +75,7 @@ class HistoryDialogueDatabase:
         else:
             room_id = self.PRIVATE_ROOM_ID_FORMAT % (user_id, staff_id)
         sql = f"SELECT sender, receiver, msg_type, content, sendtime as sendTime FROM {self.table_name} " \
-                "WHERE roomid = %s AND sendtime < %s ORDER BY sendtime DESC LIMIT %s"
+                "WHERE roomid = %s AND sendtime <= %s ORDER BY sendtime DESC LIMIT %s"
         data = self.db.select(sql, DictCursor, (room_id, end_timestamp_ms, limit))
         if not data:
             return []