update pagination

src/Managing.Api/Models/Requests/PaginatedBacktestsResponse.cs

@@ -0,0 +1,44 @@
+using Managing.Domain.Backtests;
+
+namespace Managing.Api.Models.Requests;
+
+/// <summary>
+/// Response model for paginated backtest results
+/// </summary>
+public class PaginatedBacktestsResponse
+{
+    /// <summary>
+    /// The list of backtests for the current page
+    /// </summary>
+    public IEnumerable<Backtest> Backtests { get; set; } = new List<Backtest>();
+
+    /// <summary>
+    /// Total number of backtests across all pages
+    /// </summary>
+    public int TotalCount { get; set; }
+
+    /// <summary>
+    /// Current page number
+    /// </summary>
+    public int CurrentPage { get; set; }
+
+    /// <summary>
+    /// Number of items per page
+    /// </summary>
+    public int PageSize { get; set; }
+
+    /// <summary>
+    /// Total number of pages
+    /// </summary>
+    public int TotalPages { get; set; }
+
+    /// <summary>
+    /// Whether there are more pages available
+    /// </summary>
+    public bool HasNextPage { get; set; }
+
+    /// <summary>
+    /// Whether there are previous pages available
+    /// </summary>
+    public bool HasPreviousPage { get; set; }
+}