add windows build script

build.bat

@@ -0,0 +1,77 @@
+@echo off
+setlocal enabledelayedexpansion
+cd /d "%~dp0"
+
+echo --- Disco-Reaper Windows Build Script ---
+
+REM Check for venv
+IF NOT EXIST "venv" (
+    echo Creating virtual environment...
+    python -m venv venv
+    IF ERRORLEVEL 1 (
+        echo Error: Failed to create virtual environment.
+        echo Ensure Python is installed and added to PATH.
+        IF NOT DEFINED AUTO_BUILD pause
+        exit /b 1
+    )
+)
+
+echo Activating virtual environment...
+call venv\Scripts\activate.bat
+
+REM Self-healing pip check
+python -m pip --version >nul 2>&1
+IF ERRORLEVEL 1 (
+    echo Warning: pip is missing or broken in venv. Attempting repair...
+    python -m ensurepip --default-pip
+    IF ERRORLEVEL 1 (
+        echo Error: Failed to repair pip automatically.
+        echo Try recreating the venv: rmdir /s /q venv ^&^& python -m venv venv
+        IF NOT DEFINED AUTO_BUILD pause
+        exit /b 1
+    )
+)
+
+echo Ensuring build dependencies are up to date...
+REM python -m pip install --upgrade pip --quiet
+python -m pip install pyinstaller --quiet
+python -m pip install -r requirements.txt --quiet
+
+echo Cleaning previous build artifacts...
+IF EXIST "build" rmdir /s /q build
+IF EXIST "dist" rmdir /s /q dist
+
+echo Starting PyInstaller build...
+REM Get git version tag
+set "GIT_VERSION=Unknown"
+for /f "tokens=*" %%i in ('git describe --tags --abbrev^=0 2^>nul') do set "GIT_VERSION=%%i"
+echo Baking version: %GIT_VERSION%
+echo __version__ = "%GIT_VERSION%"> src\core\_baked_version.py
+
+python -m PyInstaller --clean disco-reaper.spec
+IF ERRORLEVEL 1 (
+    echo Error: PyInstaller build failed.
+    del /f src\core\_baked_version.py 2>nul
+    IF NOT DEFINED AUTO_BUILD pause
+    exit /b 1
+)
+
+echo Cleaning up baked version file...
+del /f src\core\_baked_version.py 2>nul
+
+echo Packaging release: disco-reaper-windows.zip...
+cd dist
+powershell -Command "Compress-Archive -Path 'DiscoReaper.exe' -DestinationPath 'disco-reaper-windows.zip' -Force" 2>nul
+IF ERRORLEVEL 1 (
+    echo Warning: Failed to create zip. Files are available in dist\ directory.
+) ELSE (
+    echo Package created: dist\disco-reaper-windows.zip
+)
+cd ..
+
+echo -----------------------------------
+echo Build complete!
+echo Standalone executable: dist\DiscoReaper.exe
+echo Release Package:       dist\disco-reaper-windows.zip
+echo ---
+IF NOT DEFINED AUTO_BUILD pause