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/TestApp/Templates/SplitWorkOrderQuery2.txt

@@ -0,0 +1,13 @@
+/* Add any work orders split from flagged work orders */
+MERGE INTO TEMP_WO TARGET
+USING
+(
+  select distinct WADOCO, COALESCE(WALOTN, CAST(WADOCO AS CHAR(8))) WALOTN, WAMMCU, WAITM
+  from F4801_WO wo inner join
+       TEMP_WO t_wo ON wo.WAPARS = CAST(t_wo.WORKORDERNUMBER as char(8))
+) SOURCE ON (TARGET.WORKORDERNUMBER = SOURCE.WADOCO)
+WHEN MATCHED THEN
+  UPDATE SET SPLITORDER = 'T'
+WHEN NOT MATCHED THEN
+  INSERT (WORKORDERNUMBER, LOTNUMBER, BRANCHCODE, SHORTITEMNUMBER, SPLITORDER)
+  VALUES (SOURCE.WADOCO, SOURCE.WALOTN, SOURCE.WAMMCU, SOURCE.WAITM, 'T');