Add converting strategies for beam shear actions

DataAccess/DTOs/DTOEntities/BeamShearAxisActionDTO.cs

@@ -0,0 +1,31 @@
+using Newtonsoft.Json;
+using StructureHelperCommon.Models.Forces;
+
+//Copyright (c) 2025 Redikultsev Evgeny, Ekaterinburg, Russia
+//All rights reserved.
+
+namespace DataAccess.DTOs
+{
+    public class BeamShearAxisActionDTO : IBeamShearAxisAction
+    {
+        [JsonProperty("Id")]
+        public Guid Id { get; }
+        [JsonProperty("Name")]
+        public string Name { get; set; }
+        [JsonProperty("SupportForce")]
+        public IFactoredForceTuple SupportForce { get; set; }
+        [JsonProperty("SpanLoads")]
+        public List<IBeamSpanLoad> ShearLoads { get; } = new();
+
+        public BeamShearAxisActionDTO(Guid id)
+        {
+            Id = id;
+        }
+
+
+        public object Clone()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}