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/Lot.sql

@@ -0,0 +1,20 @@
+CREATE TABLE [dbo].[Lot]
+(
+	[LotNumber] VARCHAR(30) NOT NULL, 
+	[BranchCode] VARCHAR(12) NOT NULL,
+	[ShortItemNumber] BIGINT NOT NULL,
+    [ItemNumber] VARCHAR(25) NULL, 
+	[SupplierCode] BIGINT NOT NULL,
+	[StatusCode] CHAR(1) NULL,
+	[Memo1] VARCHAR(30) NULL,
+	[Memo2] VARCHAR(30) NULL,
+	[Memo3] VARCHAR(30) NULL,
+    [LastUpdateDT] DATETIME NOT NULL,
+	CONSTRAINT [PK_Lot] PRIMARY KEY CLUSTERED([LotNumber], [ShortItemNumber], [BranchCode])
+)
+
+GO
+
+CREATE INDEX [IX_Lot_SupplierCode] ON [dbo].[Lot] ([SupplierCode]) INCLUDE([LotNumber])
+
+GO