Add install scripts

install-windows.bat

@@ -0,0 +1,112 @@
+@echo off
+setlocal EnableExtensions EnableDelayedExpansion
+
+set "SERVICE_NAME=LuxtoolsClient"
+set "DISPLAY_NAME=luxtools-client"
+set "INSTALL_DIR=%ProgramFiles%\LuxtoolsClient"
+set "BIN_PATH=%INSTALL_DIR%\luxtools-client.exe"
+set "DATA_DIR=%ProgramData%\LuxtoolsClient"
+set "TOKEN_FILE=%DATA_DIR%\token.txt"
+set "LISTEN=127.0.0.1:8765"
+set "SCRIPT_DIR=%~dp0"
+set "SRC_EXE=%SCRIPT_DIR%luxtools-client.exe"
+
+rem Optional args:
+rem   --listen host:port
+
+if /I "%~1"=="-h" goto :usage
+if /I "%~1"=="--help" goto :usage
+
+:parse
+if "%~1"=="" goto :main
+if /I "%~1"=="--listen" (
+  set "LISTEN=%~2"
+  shift
+  shift
+  goto :parse
+)
+echo Unknown arg: %~1
+goto :usage
+
+:usage
+echo Usage: %~nx0 [--listen host:port]
+echo.
+echo Installs/updates %DISPLAY_NAME% as a Windows Service (auto-start).
+echo Re-running updates the installed binary and restarts the service.
+echo The token is stored in %TOKEN_FILE%.
+exit /b 2
+
+:main
+rem Require admin
+net session >nul 2>&1
+if not "%ERRORLEVEL%"=="0" (
+  echo This script must be run as Administrator.
+  exit /b 1
+)
+
+if not exist "%INSTALL_DIR%" mkdir "%INSTALL_DIR%" >nul 2>&1
+if not exist "%DATA_DIR%" mkdir "%DATA_DIR%" >nul 2>&1
+
+if not exist "%SRC_EXE%" (
+  echo Missing binary next to script: %SRC_EXE%
+  echo Build it first ^(e.g. "go build -o luxtools-client.exe ."^) and re-run.
+  exit /b 1
+)
+
+set "CURRENT_TOKEN="
+if exist "%TOKEN_FILE%" (
+  set /p CURRENT_TOKEN=<"%TOKEN_FILE%"
+)
+
+set "SUGGESTED_TOKEN="
+if "%CURRENT_TOKEN%"=="" (
+  rem Generate a URL-safe-ish token; PowerShell is available on modern Windows.
+  for /f "usebackq delims=" %%T in (`powershell -NoProfile -Command "$b=[byte[]]::new(32);[Security.Cryptography.RandomNumberGenerator]::Fill($b);[Convert]::ToBase64String($b).TrimEnd('=') -replace '\+','-' -replace '/','_'"`) do (
+    set "SUGGESTED_TOKEN=%%T"
+  )
+)
+
+echo.
+if not "%CURRENT_TOKEN%"=="" (
+  echo A token is already configured. Press Enter to keep it, or type a new one.
+) else (
+  echo No token configured yet. Press Enter to use a generated token, or type your own.
+)
+set /p TOKEN_INPUT=Token: 
+
+if not "%TOKEN_INPUT%"=="" (
+  set "TOKEN=%TOKEN_INPUT%"
+) else (
+  if not "%CURRENT_TOKEN%"=="" (
+    set "TOKEN=%CURRENT_TOKEN%"
+  ) else (
+    set "TOKEN=%SUGGESTED_TOKEN%"
+  )
+)
+
+>"%TOKEN_FILE%" (echo %TOKEN%)
+
+copy /Y "%SRC_EXE%" "%BIN_PATH%" >nul
+if not "%ERRORLEVEL%"=="0" exit /b 1
+
+set "BINPATH=\"%BIN_PATH%\" -listen %LISTEN% -token %TOKEN%"
+
+sc.exe query "%SERVICE_NAME%" >nul 2>&1
+if "%ERRORLEVEL%"=="0" (
+  echo Updating existing service...
+  sc.exe stop "%SERVICE_NAME%" >nul 2>&1
+  sc.exe config "%SERVICE_NAME%" start= auto binPath= "%BINPATH%" DisplayName= "%DISPLAY_NAME%" >nul
+) else (
+  echo Creating service...
+  sc.exe create "%SERVICE_NAME%" start= auto binPath= "%BINPATH%" DisplayName= "%DISPLAY_NAME%" >nul
+)
+
+sc.exe start "%SERVICE_NAME%" >nul 2>&1
+
+echo.
+echo Installed/updated %DISPLAY_NAME%.
+echo - Binary: %BIN_PATH%
+echo - Token:  %TOKEN%
+echo - Listen: %LISTEN%
+endlocal
+exit /b 0