Add JWT auth, token service & Neutrino endpoint

API/Contracts/Neutrino/Responses/NeutrinoResultCodeResponse.cs

@@ -0,0 +1,31 @@
+using System.Text.Json.Serialization;
+
+namespace API.Contracts.Neutrino.Responses;
+
+public class NeutrinoResultCodeResponse
+{
+    public static NeutrinoResultCodeResponse Success() => new NeutrinoResultCodeResponse
+    {
+        ResultCode = 0
+    };
+
+    public static NeutrinoResultCodeResponse Failure(byte resultCode, string? message = null)
+    {
+        return new NeutrinoResultCodeResponse
+        {
+            Message = message,
+            ResultCode = resultCode
+        };
+    }
+
+    [JsonPropertyName(name: "Data")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Data { get; set; }
+
+    [JsonPropertyName(name: "Message")]
+    [JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]
+    public string? Message { get; set; }
+
+    [JsonPropertyName(name: "ResultCode")] 
+    public byte ResultCode { get; set; }
+}