Add explicit @RC handling in SQL for delete/update procs

Updated DeleteObjectProcedureHandler and UpdateObjectProcedureHandler to declare, initialize, and select the @RC variable in their SQL command strings. This ensures the stored procedure return code is explicitly captured and returned by the query.

src/ReC.Application/Common/Procedures/DeleteProcedure/DeleteObjectProcedure.cs

@@ -60,6 +60,7 @@ public class DeleteObjectProcedureHandler(IRepository repo) : IRequestHandler<De
         };
 
         var result = await repo.ExecuteQueryRawAsync(
+            "DECLARE @RC SMALLINT = 0; " +
             "EXEC @RC = [dbo].[PRREC_DELETE_OBJECT] " +
             "@pENTITY, @pSTART, @pEND, @pFORCE; " +
             "SELECT @RC;",

src/ReC.Application/Common/Procedures/UpdateProcedure/UpdateObjectProcedure.cs

@@ -114,6 +114,7 @@ public class UpdateObjectProcedureHandler(IRepository repo) : IRequestHandler<Up
         };
 
         var result = await repo.ExecuteQueryRawAsync(
+            "DECLARE @RC SMALLINT = 0; " +
             "EXEC @RC = [dbo].[PRREC_UPDATE_OBJECT] " +
             "@pENTITY, @pGUID, @pCHANGED_WHO, @pCHANGED_WHEN, " +
             "@pACTION_PROFILE_ID, @pACTION_ACTIVE, @pACTION_SEQUENCE, @pACTION_ENDPOINT_ID, @pACTION_ENDPOINT_AUTH_ID, @pACTION_ENDPOINT_PARAMS_ID, @pACTION_SQL_CONNECTION_ID, @pACTION_TYPE_ID, @pACTION_PRE_SQL, @pACTION_HEADER_SQL, @pACTION_BODY_SQL, @pACTION_POST_SQL, @pACTION_ERROR_ACTION_ID, " +