Eigener Installer mit Standard- und Portable-Modus, Updater fuer beide Varianten

build.bat

@@ -8,14 +8,26 @@ if not exist node_modules (
     if errorlevel 1 goto :fail
 )
 
-echo Baue Installer (NSIS)...
-call npx tauri build
+echo Baue EuerChat.exe ...
+call npx tauri build --no-bundle
 if errorlevel 1 goto :fail
 
+for /f "usebackq delims=" %%v in (`node -p "require('./src-tauri/tauri.conf.json').version"`) do set VERSION=%%v
+
+set MAKENSIS=%LOCALAPPDATA%\tauri\NSIS\makensis.exe
+if not exist "%MAKENSIS%" set MAKENSIS=%ProgramFiles(x86)%\NSIS\makensis.exe
+if not exist "%MAKENSIS%" (
+    echo [FEHLER] makensis nicht gefunden. NSIS 3 installieren: winget install NSIS.NSIS
+    goto :fail
+)
+
 if not exist dist mkdir dist
-copy /y "src-tauri\target\release\bundle\nsis\EuerChat_*_x64-setup.exe" dist\ >nul
+echo Baue Installer %VERSION% ...
+"%MAKENSIS%" /V2 /DVERSION=%VERSION% installer\EuerChat.nsi
+if errorlevel 1 goto :fail
+
 copy /y src-tauri\target\release\euer-chat.exe EuerChat.exe >nul
-echo [OK] Installer liegt in dist\ - EuerChat.exe (portabel) im Hauptordner.
+echo [OK] Installer: dist\EuerChat_%VERSION%_x64-setup.exe
 pause
 exit /b 0