One-click LAUNCH.bat: pull, UI build, tunnel, and server start.

Operators double-click LAUNCH for git pull, npm build, data prep, cloudflared, and AetherForge or dev miner-server; devrun shares launch-prep.

scripts/launch-prep.bat

@@ -0,0 +1,74 @@
+@echo off
+setlocal EnableExtensions
+set "PREP_ROOT=%~1"
+if "%PREP_ROOT%"=="" (
+  echo   [Prep] ERROR: launch-prep.bat requires repo root path.
+  exit /b 1
+)
+
+echo.
+echo   Pulling latest from origin/main...
+if exist "%PREP_ROOT%\.git" (
+  pushd "%PREP_ROOT%" >nul
+  git pull origin main
+  if errorlevel 1 (
+    echo   [Prep] Note: git pull skipped or failed ^(offline, no remote, or local changes^).
+  ) else (
+    echo   [Prep] Git pull finished.
+  )
+  popd >nul
+) else (
+  echo   [Prep] Skipped ^(not a git checkout^).
+)
+
+if not exist "%PREP_ROOT%\server\web\package.json" (
+  echo   [Prep] No server\web\package.json - skipping UI build.
+  exit /b 0
+)
+
+set "PATH=C:\Program Files\nodejs;%PATH%"
+where npm >nul 2>nul
+if errorlevel 1 (
+  echo   [Prep] WARNING: npm not found - skipping UI build.
+  exit /b 0
+)
+
+echo.
+echo   Building UI ^(server\web^)...
+cd /d "%PREP_ROOT%\server\web"
+if not exist "node_modules" (
+  if exist "package-lock.json" (
+    echo   [Prep] npm ci...
+    call npm ci
+  ) else (
+    echo   [Prep] npm install...
+    call npm install
+  )
+  if errorlevel 1 (
+    cd /d "%PREP_ROOT%"
+    echo   [Prep] ERROR: npm install failed.
+    exit /b 1
+  )
+)
+
+echo   [Prep] npm run build ^(this may take a few minutes^)...
+call npm run build
+if errorlevel 1 (
+  cd /d "%PREP_ROOT%"
+  echo   [Prep] ERROR: Frontend build failed.
+  exit /b 1
+)
+cd /d "%PREP_ROOT%"
+
+if not exist "%PREP_ROOT%\server\webroot" mkdir "%PREP_ROOT%\server\webroot"
+echo   [Prep] Syncing server\webroot...
+xcopy /E /I /Y /Q "server\web\dist\*" "server\webroot\" >nul
+
+if exist "%PREP_ROOT%\usb" (
+  if not exist "%PREP_ROOT%\usb\webroot" mkdir "%PREP_ROOT%\usb\webroot"
+  echo   [Prep] Syncing usb\webroot...
+  xcopy /E /I /Y /Q "server\web\dist\*" "usb\webroot\" >nul
+)
+
+echo   [Prep] UI build complete.
+exit /b 0