Windows installer

scripts/sync-windows-vm.cmd

@@ -0,0 +1,51 @@
+@echo off
+setlocal EnableExtensions
+
+rem Sync Mac workspace share -> local VM copy.
+rem Uses /E (not /MIR) so VM-only build caches (target, build, .gradle) are never deleted.
+
+set "SRC=C:\Mac\Home\Desktop\FromChat\app"
+set "DEST=C:\FromChat\app"
+
+if not exist "%SRC%\" (
+  echo ERROR: Mac share not found at %SRC%
+  echo Enable Parallels shared folders or adjust SRC in sync-windows-vm.cmd
+  exit /b 1
+)
+
+if not exist "%DEST%\" mkdir "%DEST%"
+
+set "OPTS=/E /R:2 /W:2 /NP /NFL /NDL"
+set "CACHE=/XD target build .gradle node_modules .git"
+set "SKIP=/XF gradle-daemon-jvm.properties"
+
+if /I "%~1"=="rust" (
+  echo Syncing app\desktop\windows-setup ^(keeping target\^)...
+  robocopy "%SRC%\app\desktop\windows-setup" "%DEST%\app\desktop\windows-setup" %OPTS% /XD target
+  goto :finish
+)
+
+if /I "%~1"=="scripts" (
+  echo Syncing scripts...
+  robocopy "%SRC%\scripts" "%DEST%\scripts" %OPTS%
+  goto :finish
+)
+
+if /I "%~1"=="gradle" (
+  echo Syncing app tree for Gradle ^(keeping build caches^)...
+  robocopy "%SRC%" "%DEST%" %OPTS% %CACHE% %SKIP%
+  goto :finish
+)
+
+echo Syncing full app tree ^(preserving target, build, .gradle^)...
+robocopy "%SRC%" "%DEST%" %OPTS% %CACHE% %SKIP%
+goto :finish
+
+:finish
+set "RC=%ERRORLEVEL%"
+rem Robocopy: 0-7 = success (0 = nothing to copy, 1+ = copied files)
+if %RC% GEQ 8 (
+  echo robocopy failed with exit code %RC%
+  exit /b %RC%
+)
+exit /b 0