Windows: add Docker update script

update_windows.bat

@@ -0,0 +1,59 @@
+@echo off
+setlocal
+title Update Odysseus Docker Deployment
+
+pushd "%~dp0" >nul
+
+echo =========================================
+echo Updating Odysseus Docker deployment
+echo =========================================
+echo.
+
+where git >nul 2>nul
+if errorlevel 1 (
+  echo [!] Git was not found on PATH.
+  echo     Install Git for Windows, then run this script again.
+  goto :fail
+)
+
+where docker >nul 2>nul
+if errorlevel 1 (
+  echo [!] Docker was not found on PATH.
+  echo     Start Docker Desktop, then run this script again.
+  goto :fail
+)
+
+docker compose version >nul 2>nul
+if errorlevel 1 (
+  echo [!] Docker Compose is not available.
+  echo     Update Docker Desktop, then run this script again.
+  goto :fail
+)
+
+echo [+] Pulling latest code...
+git pull --ff-only
+if errorlevel 1 goto :fail
+
+echo.
+echo [+] Rebuilding and restarting containers...
+docker compose up -d --build
+if errorlevel 1 goto :fail
+
+echo.
+echo [+] Removing dangling Docker images...
+docker image prune -f
+if errorlevel 1 goto :fail
+
+echo.
+echo =========================================
+echo Update completed successfully.
+echo =========================================
+goto :done
+
+:fail
+echo.
+echo Update failed. Check the message above and try again.
+
+:done
+popd >nul
+pause