Fase 3: Implementación de Listings (Avisos) - Entidades, Repositorio, API y Frontend Wizard integración

src/SIGCM.Application/DTOs/ListingDtos.cs

@@ -0,0 +1,22 @@
+namespace SIGCM.Application.DTOs;
+
+public class CreateListingDto
+{
+    public int CategoryId { get; set; }
+    public int OperationId { get; set; }
+    public required string Title { get; set; }
+    public string? Description { get; set; }
+    public decimal Price { get; set; }
+    public string Currency { get; set; } = "ARS";
+    public int? UserId { get; set; }
+
+    // Dictionary of AttributeDefinitionId -> Value
+    public Dictionary<int, string> Attributes { get; set; } = new();
+}
+
+public class ListingDto : CreateListingDto
+{
+    public int Id { get; set; }
+    public DateTime CreatedAt { get; set; }
+    public string Status { get; set; }
+}