Apparently the response can be empty

StabilityMatrix/Models/Api/CivitModelsResponse.cs

@@ -5,8 +5,8 @@ namespace StabilityMatrix.Models.Api;
 public class CivitModelsResponse
 {
     [JsonPropertyName("items")]
-    public CivitModel[] Items { get; set; }
+    public CivitModel[]? Items { get; set; }
     
     [JsonPropertyName("metadata")]
-    public CivitMetadata Metadata { get; set; }
+    public CivitMetadata? Metadata { get; set; }
 }