fix: DOS 6.22 compatibility - remove 2>NUL, add XCOPY /I flag

DOS 6.22 does not support stderr redirection (2>NUL), only stdout (>NUL).
Added /I flag to XCOPY to assume destination is directory.
Added CD \ATE and menux to AUTOEXEC.BAT generation.

Changes:
- CTONW.BAT v2.5: Removed 2>NUL from MD commands, added /I to XCOPY
- NWTOC.BAT v2.8: Removed 2>NUL from MD commands, added /I to XCOPY
- DEPLOY.BAT v2.3: Removed 2>NUL, added CD \ATE and menux to AUTOEXEC

Tested successfully on TS-4R and TS-3R DOS machines.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

projects/dataforth-dos/batch-files/NWTOC.BAT

@@ -1,6 +1,6 @@
 @ECHO OFF
 REM Network to Computer - Download software updates from network to local C: drive
-REM Version: 2.7 - XCOPY /Y for unattended operation (DOS 6.22)
+REM Version: 2.8 - Added /I flag, removed 2>NUL (DOS 6.22)
 REM Last modified: 2026-01-20
 
 REM Check MACHINE variable
@@ -16,16 +16,16 @@ ECHO Download Updates: %MACHINE% from Network
 ECHO ==============================================================
 ECHO.
 
-REM Create local directories (ignore errors)
-MD C:\BAT >NUL 2>NUL
-MD C:\ATE >NUL 2>NUL
-MD C:\NET >NUL 2>NUL
+REM Create local directories (ignore errors with >NUL)
+MD C:\BAT >NUL
+MD C:\ATE >NUL
+MD C:\NET >NUL
 
 REM Check for COMMON updates
 IF NOT EXIST T:\COMMON\ProdSW\*.* GOTO NO_COMMON
 
 ECHO [1/3] Copying from T:\COMMON\ProdSW to C:\BAT...
-XCOPY T:\COMMON\ProdSW\*.BAT C:\BAT /Y >NUL
+XCOPY T:\COMMON\ProdSW\*.BAT C:\BAT /Y /I >NUL
 ECHO [OK] Common batch files updated
 ECHO.
 
@@ -33,10 +33,10 @@ REM Check for machine-specific updates
 IF NOT EXIST T:\%MACHINE%\ProdSW\*.* GOTO SKIP_MACHINE
 
 ECHO [2/3] Copying from T:\%MACHINE%\ProdSW...
-IF EXIST T:\%MACHINE%\ProdSW\*.BAT XCOPY T:\%MACHINE%\ProdSW\*.BAT C:\BAT /Y >NUL
-IF EXIST T:\%MACHINE%\ProdSW\*.EXE XCOPY T:\%MACHINE%\ProdSW\*.EXE C:\ATE /Y >NUL
-IF EXIST T:\%MACHINE%\ProdSW\*.DAT XCOPY T:\%MACHINE%\ProdSW\*.DAT C:\ATE /Y >NUL
-IF EXIST T:\%MACHINE%\ProdSW\*.CFG XCOPY T:\%MACHINE%\ProdSW\*.CFG C:\ATE /Y >NUL
+IF EXIST T:\%MACHINE%\ProdSW\*.BAT XCOPY T:\%MACHINE%\ProdSW\*.BAT C:\BAT /Y /I >NUL
+IF EXIST T:\%MACHINE%\ProdSW\*.EXE XCOPY T:\%MACHINE%\ProdSW\*.EXE C:\ATE /Y /I >NUL
+IF EXIST T:\%MACHINE%\ProdSW\*.DAT XCOPY T:\%MACHINE%\ProdSW\*.DAT C:\ATE /Y /I >NUL
+IF EXIST T:\%MACHINE%\ProdSW\*.CFG XCOPY T:\%MACHINE%\ProdSW\*.CFG C:\ATE /Y /I >NUL
 ECHO [OK] Machine-specific files updated
 ECHO.
 GOTO CHECK_NET
@@ -50,7 +50,7 @@ REM Check for network client updates
 IF NOT EXIST T:\COMMON\NET\*.* GOTO SKIP_NET
 
 ECHO [3/3] Copying from T:\COMMON\NET to C:\NET...
-XCOPY T:\COMMON\NET\*.* C:\NET /Y >NUL
+XCOPY T:\COMMON\NET\*.* C:\NET /Y /I >NUL
 ECHO [OK] Network files updated
 ECHO.
 GOTO DONE