tcloud compatibility, dotnet bug fixes

enterprise/Models/SearchTrainsRequest.cs

@@ -1,9 +1,18 @@
+using System.Text.Json.Serialization;
+
 namespace TrainSearchWorker.Models;
 
 public record SearchTrainsRequest
 {
+    [JsonPropertyName("origin")]
     public required string From { get; init; }
+
+    [JsonPropertyName("destination")]
     public required string To { get; init; }
+
+    [JsonPropertyName("outbound_time")]
     public required string OutboundTime { get; init; }
+
+    [JsonPropertyName("return_time")]
     public required string ReturnTime { get; init; }
 }