Daily update on 20250313-044921 by Nitload Youmu. Additional Message : Parser to TokenFlag.Member, improvement of exiting StgSharp platform

Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>

StgSharp.Script/Express/Element/ExpConst.cs

@@ -33,6 +33,7 @@ using System.Collections;
 using System.Collections.Frozen;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.Linq.Expressions;
 using System.Runtime.CompilerServices;
 using System.Text;
 
@@ -88,6 +89,17 @@ namespace StgSharp.Script.Express
             return _constants.TryGetValue( name, out instance );
         }
 
+        public override bool TryGetMember( string name, out ExpNode memberNode )
+        {
+            if( _constants.TryGetValue( name,
+                                        out ExpElementInstanceBase? node ) ) {
+                memberNode = node;
+                return true;
+            }
+            memberNode = ExpNode.Empty;
+            return false;
+        }
+
         internal void AddConstant( string name, ExpElementInstanceBase value )
         {
             _constants.Add( name, value );