获取去重后快讯新闻信息

记录去重后的快讯新闻基本信息，包括新闻原始出处、新闻作者、新闻网址、新闻有效发布时间等。在新闻信息表的基础上进行算法去重，逻辑为选择网站最早出现的一条新闻。Records basic information of deduplicated breaking news, including its original source, author, URL, valid publication time and other relevant details. Algorithm-based deduplication is conducted on the news information table, following the logic of selecting the earliest published news item on the corresponding website.