Add beam shear action view

StructureHelperCommon/Models/Forces/BeamShearActions/Factories/BeamShearActionFactory.cs

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+using StructureHelperCommon.Infrastructures.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+//Copyright (c) 2025 Redikultsev Evgeny, Ekaterinburg, Russia
+//All rights reserved.
+
+namespace StructureHelperCommon.Models.Forces.BeamShearActions
+{
+    public enum ShearActionTypes
+    {
+        DistributedLoad
+    }
+    /// <summary>
+    /// Generates beam shear action with default settings
+    /// </summary>
+    public static class BeamShearActionFactory
+    {
+        public static IBeamShearAction GetBeamShearAction(ShearActionTypes actionType)
+        {
+            if (actionType == ShearActionTypes.DistributedLoad)
+            {
+                return GetDistributedLoad();
+            }
+            else
+            {
+                throw new StructureHelperException(ErrorStrings.ObjectTypeIsUnknownObj(actionType));
+            }
+        }
+
+        private static IBeamShearAction GetDistributedLoad()
+        {
+            BeamShearAction beamShearAction = new(Guid.NewGuid())
+            {
+                Name = "Beam shear action"
+            };
+            SetAction(beamShearAction.XAxisShearAction, 0);
+            SetFactors(beamShearAction.XAxisShearAction);
+            beamShearAction.XAxisShearAction.ShearLoads.Clear();
+
+            SetAction(beamShearAction.YAxisShearAction, 1e5);
+            SetFactors(beamShearAction.YAxisShearAction);
+            return beamShearAction;
+        }
+
+        private static void SetAction(IBeamShearAxisAction beamShearAxisAction, double supportForce)
+        {
+            beamShearAxisAction.SupportShearForce = 1e5;
+            IBeamShearLoad distributedLoad = BeamShearLoadFactory.GetBeamShearLoad(ShearLoadTypes.DistributedLoad);
+            beamShearAxisAction.ShearLoads.Add(distributedLoad);
+        }
+
+        private static void SetFactors(IBeamShearAxisAction beamShearAxisAction)
+        {
+            beamShearAxisAction.FactoredCombinationProperty.LimitState = Infrastructures.Enums.LimitStates.ULS;
+            beamShearAxisAction.FactoredCombinationProperty.CalcTerm = Infrastructures.Enums.CalcTerms.ShortTerm;
+            beamShearAxisAction.FactoredCombinationProperty.LongTermFactor = 0.95;
+            beamShearAxisAction.FactoredCombinationProperty.ULSFactor = 1.2;
+        }
+    }
+}