"Add Windows installer and driver training rewards"

windows/install.bat

@@ -0,0 +1,18 @@
+@echo off
+setlocal
+
+echo JMK RB RaceController - Windows 11 setup
+echo.
+
+powershell.exe -NoProfile -ExecutionPolicy Bypass -File "%~dp0setup.ps1" %*
+set "EXIT_CODE=%ERRORLEVEL%"
+
+echo.
+if not "%EXIT_CODE%"=="0" (
+  echo [ERROR] Setup failed with exit code %EXIT_CODE%.
+) else (
+  echo [OK] Setup completed.
+)
+echo Press any key to close.
+pause >nul
+exit /b %EXIT_CODE%