Add project files.

Models/Vehicle.cs

@@ -0,0 +1,24 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace LogisticsApp.Server.Models
+{
+    public class Vehicle
+    {
+        [Key]
+        public int Id { get; set; }
+
+        [Required]
+        [StringLength(100)]
+        public string DriverName { get; set; } = string.Empty;
+
+        [Required]
+        [StringLength(50)]
+        public string VehicleType { get; set; } = string.Empty;
+
+        [Required]
+        [StringLength(20)]
+        public string LicensePlate { get; set; } = string.Empty;
+
+        public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+    }
+}