Add project files.

DTOs/ApiResponse.cs

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+
+namespace LogisticsApp.Server.DTOs
+{
+    public class ApiResponse<T>
+    {
+        public bool Success { get; set; }
+        public string Message { get; set; } = string.Empty;
+        public T? Data { get; set; }
+
+        public ApiResponse(bool success, string message, T? data = default)
+        {
+            Success = success;
+            Message = message;
+            Data = data;
+        }
+    }
+
+    public class PagedResult<T>
+    {
+        public List<T> Items { get; set; } = new();
+        public int TotalCount { get; set; }
+        public int Page { get; set; }
+        public int PageSize { get; set; }
+        public int TotalPages { get; set; }
+    }
+}

DTOs/LoginRequest.cs

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+namespace LogisticsApp.Server.DTOs
+{
+    public class LoginRequest
+    {
+        public string Username { get; set; } = string.Empty;
+        public string Password { get; set; } = string.Empty;
+    }
+}

DTOs/LoginResponse.cs

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+namespace LogisticsApp.Server.DTOs
+{
+    public class LoginResponse
+    {
+        public string Token { get; set; } = string.Empty;
+        public string Username { get; set; } = string.Empty;
+        public string Role { get; set; } = string.Empty;
+        public DateTime Expires { get; set; }
+    }
+}

DTOs/OrderFilters.cs

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+namespace LogisticsApp.Server.DTOs
+{
+    public class OrderFilters
+    {
+        public string? ClientName { get; set; }
+        public decimal? MinCost { get; set; }
+        public decimal? MaxCost { get; set; }
+        public DateTime? OrderDate { get; set; }
+        public string? Status { get; set; }
+        public int Page { get; set; } = 1;
+        public int PageSize { get; set; } = 50;
+    }
+}

DTOs/VehicleFilters.cs

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+namespace LogisticsApp.Server.DTOs
+{
+    public class VehicleFilters
+    {
+        public string? DriverName { get; set; }
+        public string? VehicleType { get; set; }
+        public string? LicensePlate { get; set; }
+        public int Page { get; set; } = 1;
+        public int PageSize { get; set; } = 50;
+    }
+}