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

DBConnection/Models/Chapter.cs

@@ -4,11 +4,11 @@ namespace DBConnection.Models;
 
 public class Chapter : BaseEntity
 {
-    [Key]
     public int ChapterNumber { get; set; }
     public string Name { get; set; }
     public string? Content { get; set; }
     public string? RawContent { get; set; }
+    [Key]
     public string Url { get; set; }
     public DateTime DatePosted { get; set; }
     public DateTime DateUpdated { get; set; }