Fix empty torrents (#11)

* fixed unwanted deletion of torrents in downloading metadata state

* refactored jobs code

* updated arr test data

* updated gitignore

* updated test configuration and removed dispensable files

code/Domain/Models/Deluge/Response/DelugeContents.cs

@@ -5,7 +5,7 @@ namespace Domain.Models.Deluge.Response;
 public sealed record DelugeContents
 {
     [JsonPropertyName("contents")]
-    public Dictionary<string, DelugeFileOrDirectory> Contents { get; set; }
+    public Dictionary<string, DelugeFileOrDirectory>? Contents { get; set; }
 
     [JsonPropertyName("type")]
     public string Type { get; set; } // Always "dir" for the root