Add clanker code

dealer/Vehicle.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 
 namespace dealer
@@ -9,11 +10,26 @@ namespace dealer
     public class Vehicle
     {
         public string? Spz { get; set; }
+        public string? Znacka { get; set; }
         public string? Model { get; set; }
         public string? Barva { get; set; }
         public int? RokVyroby { get; set; }
+        public string? Palivo { get; set; }
         public int? NajeteKm { get; set; }
         public decimal? Cena { get; set; }
-        public string? Fotografie { get; set; }
+        
+        public Guid? FotografieId { get; set; }
+        
+        [JsonIgnore]
+        public Image? Fotografie { get; set; }
+        
+        public Guid? VlastnikId { get; set; }
+        
+        [JsonIgnore]
+        public Owner? Vlastnik { get; set; }
+
+        public string ZnackaModel => !string.IsNullOrEmpty(Znacka) && !string.IsNullOrEmpty(Model) 
+            ? $"{Znacka} {Model}" 
+            : Model ?? Znacka ?? "Nezadano";
     }
 }