Initial commit: JDE Scoping Tool migration project

Set up repository with legacy .NET Framework 4.8 source (OLD/),
new .NET 10 Blazor solution (NEW/), OpenSpec specifications,
documentation, and project configuration.

OLD/Database/Tables/FunctionCode.sql

@@ -0,0 +1,7 @@
+CREATE TABLE [dbo].[FunctionCode]
+(
+	[Code] VARCHAR(10) NOT NULL, 
+    [Description] VARCHAR(MAX) NULL, 
+    [LastUpdateDT] DATETIME NOT NULL, 
+    CONSTRAINT [PK_FunctionCode] PRIMARY KEY ([Code]) 
+)