backup: WIP Windows avant repart propre (GUI core installer splash spec)

build_windows_oneclick.bat

@@ -0,0 +1,27 @@
+@echo off
+setlocal
+
+set "SCRIPT_DIR=%~dp0"
+set "PS_SCRIPT=%SCRIPT_DIR%scripts\build_windows_oneclick.ps1"
+
+if not exist "%PS_SCRIPT%" (
+  echo Script PowerShell introuvable : %PS_SCRIPT%
+  pause
+  exit /b 1
+)
+
+echo Lancement du build Windows one-click...
+powershell -NoLogo -NoProfile -ExecutionPolicy Bypass -File "%PS_SCRIPT%"
+set "EXITCODE=%ERRORLEVEL%"
+
+if not "%EXITCODE%"=="0" (
+  echo.
+  echo Le build a echoue. Code retour : %EXITCODE%
+  pause
+  exit /b %EXITCODE%
+)
+
+echo.
+echo Build termine avec succes.
+pause
+exit /b 0