feat(news): add scraper adapters, article deduplication, blocklist service, and remove tracked publish artifacts

FinlyticNews/Adapters/Scraping/XtbScraperAdapter.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Threading.Tasks;
+using Microsoft.Playwright;
+
+namespace FinlyticNews.Adapters.Scraping;
+
+/// <summary>
+/// Specialized article scraper adapter for XTB.com.
+/// </summary>
+public class XtbScraperAdapter : ArticleScraperAdapter
+{
+    public override string Hostname => "xtb.com";
+
+    public override string ArticleBodySelector => "div.news-detail, div.article__content, div.market-analysis-content";
+}