Initial efcore migration and updates to make sure upserting novels (mostly) works. still need to do chapter handling

WebNovelPortalAPI/Extensions/ScraperExtensions.cs

@@ -0,0 +1,18 @@
+using System.Reflection;
+using WebNovelPortalAPI.Scrapers;
+
+namespace WebNovelPortalAPI.Extensions;
+
+public static class ScraperExtensions
+{
+    public static void AddScrapers(this IServiceCollection services)
+    {
+        Type[] types = Assembly.GetExecutingAssembly().GetTypes().Where(t =>
+                t.IsClass && typeof(IScraper).IsAssignableFrom(t) && (t.Namespace?.Contains(nameof(Scrapers)) ?? false))
+            .ToArray();
+        foreach (var t in types)
+        {
+            services.AddScoped(typeof(IScraper), t);
+        }
+    }
+}