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

DBConnection/Models/Author.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using Newtonsoft.Json;
 
 namespace DBConnection.Models;
 
@@ -7,5 +8,6 @@ public class Author : BaseEntity
     [Key]
     public string Url { get; set; }
     public string Name { get; set; }
+    [JsonIgnore]
     public List<Novel> Novels { get; set; }
 }

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; }