v0.5.0: NomadArch - Binary-Free Mode Release

Features:
- Binary-Free Mode: No OpenCode binary required
- NomadArch Native mode with free Zen models
- Native session management
- Provider routing (Zen, Qwen, Z.AI)
- Fixed MCP connection with explicit connectAll()
- Updated installers and launchers for all platforms
- UI binary selector with Native option

Free Models Available:
- GPT-5 Nano (400K context)
- Grok Code Fast 1 (256K context)
- GLM-4.7 (205K context)
- Doubao Seed Code (256K context)
- Big Pickle (200K context)

Install-Windows.bat

@@ -0,0 +1,267 @@
+@echo off
+setlocal enabledelayedexpansion
+
+title NomadArch Installer
+
+echo.
+echo NomadArch Installer (Windows)
+echo Version: 0.5.0 - Binary-Free Mode
+echo.
+
+set SCRIPT_DIR=%~dp0
+set SCRIPT_DIR=%SCRIPT_DIR:~0,-1%
+set TARGET_DIR=%SCRIPT_DIR%
+set BIN_DIR=%TARGET_DIR%\bin
+set LOG_FILE=%TARGET_DIR%\install.log
+set TEMP_DIR=%TARGET_DIR%\.install-temp
+
+set ERRORS=0
+set WARNINGS=0
+set NEEDS_FALLBACK=0
+set SKIP_OPENCODE=0
+
+echo [%date% %time%] Installer started >> "%LOG_FILE%"
+
+echo [STEP 1/8] OS and Architecture Detection
+
+REM Use PowerShell for architecture detection (works on all Windows versions)
+for /f "tokens=*" %%i in ('powershell -NoProfile -Command "[System.Environment]::Is64BitOperatingSystem"') do set IS64BIT=%%i
+if /i "%IS64BIT%"=="True" (
+    set ARCH=x64
+) else (
+    set ARCH=x86
+)
+echo [OK] Architecture: %ARCH%
+
+echo.
+echo [STEP 2/8] Checking write permissions
+if not exist "%BIN_DIR%" mkdir "%BIN_DIR%" 2>nul
+if not exist "%TEMP_DIR%" mkdir "%TEMP_DIR%" 2>nul
+
+echo. > "%SCRIPT_DIR%\test-write.tmp" 2>nul
+if !ERRORLEVEL! neq 0 (
+    echo [WARN] Cannot write to current directory: %SCRIPT_DIR%
+    set TARGET_DIR=%USERPROFILE%\NomadArch-Install
+    set BIN_DIR=!TARGET_DIR!\bin
+    set LOG_FILE=!TARGET_DIR!\install.log
+    set TEMP_DIR=!TARGET_DIR!\.install-temp
+    if not exist "!TARGET_DIR!" mkdir "!TARGET_DIR!"
+    if not exist "!BIN_DIR!" mkdir "!BIN_DIR!"
+    if not exist "!TEMP_DIR!" mkdir "!TEMP_DIR!"
+    echo. > "!TARGET_DIR!\test-write.tmp" 2>nul
+    if !ERRORLEVEL! neq 0 (
+        echo [ERROR] Cannot write to fallback directory: !TARGET_DIR!
+        echo [%date% %time%] ERROR: Write permission denied >> "%LOG_FILE%"
+        set /a ERRORS+=1
+        goto :SUMMARY
+    )
+    del "!TARGET_DIR!\test-write.tmp"
+    set NEEDS_FALLBACK=1
+    echo [OK] Using fallback: !TARGET_DIR!
+) else (
+    del "%SCRIPT_DIR%\test-write.tmp"
+    echo [OK] Write permissions verified
+)
+
+echo.
+echo [STEP 3/8] Ensuring system dependencies
+
+set WINGET_AVAILABLE=0
+where winget >nul 2>&1
+if !ERRORLEVEL! equ 0 set WINGET_AVAILABLE=1
+
+set CHOCO_AVAILABLE=0
+where choco >nul 2>&1
+if !ERRORLEVEL! equ 0 set CHOCO_AVAILABLE=1
+
+set DOWNLOAD_CMD=powershell
+where curl >nul 2>&1
+if !ERRORLEVEL! equ 0 set DOWNLOAD_CMD=curl
+
+where node >nul 2>&1
+if !ERRORLEVEL! neq 0 (
+    echo [INFO] Node.js not found. Attempting to install...
+    if !WINGET_AVAILABLE! equ 1 (
+        winget install -e --id OpenJS.NodeJS.LTS --accept-source-agreements --accept-package-agreements
+    ) else if !CHOCO_AVAILABLE! equ 1 (
+        choco install nodejs-lts -y
+    ) else (
+        echo [ERROR] No supported package manager found.
+        echo Please install Node.js LTS from https://nodejs.org/
+        set /a ERRORS+=1
+        goto :SUMMARY
+    )
+)
+
+where node >nul 2>&1
+if !ERRORLEVEL! neq 0 (
+    echo [ERROR] Node.js install failed or requires a new terminal session.
+    set /a ERRORS+=1
+    goto :SUMMARY
+)
+
+for /f "tokens=*" %%i in ('node --version') do set NODE_VERSION=%%i
+echo [OK] Node.js: %NODE_VERSION%
+
+where npm >nul 2>&1
+if !ERRORLEVEL! neq 0 (
+    echo [ERROR] npm not found after Node.js install.
+    set /a ERRORS+=1
+    goto :SUMMARY
+)
+
+for /f "tokens=*" %%i in ('npm --version') do set NPM_VERSION=%%i
+echo [OK] npm: %NPM_VERSION%
+
+where git >nul 2>&1
+if !ERRORLEVEL! neq 0 (
+    echo [INFO] Git not found. Attempting to install...
+    if !WINGET_AVAILABLE! equ 1 (
+        winget install -e --id Git.Git --accept-source-agreements --accept-package-agreements
+    ) else if !CHOCO_AVAILABLE! equ 1 (
+        choco install git -y
+    ) else (
+        echo [WARN] Git not installed - optional
+        set /a WARNINGS+=1
+    )
+) else (
+    for /f "tokens=*" %%i in ('git --version') do set GIT_VERSION=%%i
+    echo [OK] Git: !GIT_VERSION!
+)
+
+echo.
+echo [STEP 4/8] Installing npm dependencies
+cd /d "%SCRIPT_DIR%"
+echo [%date% %time%] Running npm install >> "%LOG_FILE%"
+call npm install
+if !ERRORLEVEL! neq 0 (
+    echo [ERROR] npm install failed!
+    echo [%date% %time%] ERROR: npm install failed >> "%LOG_FILE%"
+    set /a ERRORS+=1
+    goto :SUMMARY
+)
+echo [OK] Dependencies installed
+
+echo.
+echo [STEP 5/8] OpenCode Binary - OPTIONAL
+echo.
+echo [INFO] NomadArch now supports Binary-Free Mode!
+echo [INFO] You can use the application without OpenCode binary.
+echo [INFO] Free models from OpenCode Zen are available without the binary.
+echo.
+if not exist "%BIN_DIR%" mkdir "%BIN_DIR%" 2>nul
+
+set /p SKIP_CHOICE="Skip OpenCode binary download? (Y for Binary-Free / N to download) [Y]: "
+if /i "!SKIP_CHOICE!"=="" set SKIP_CHOICE=Y
+if /i "!SKIP_CHOICE!"=="Y" goto :skip_opencode_download
+
+REM Download OpenCode binary
+echo [INFO] Fetching OpenCode version info...
+for /f "delims=" %%v in ('powershell -NoProfile -Command "try { (Invoke-WebRequest -UseBasicParsing https://api.github.com/repos/sst/opencode/releases/latest).Content | ConvertFrom-Json | Select-Object -ExpandProperty tag_name } catch { 'v0.1.44' }"') do set OPENCODE_VERSION=%%v
+set OPENCODE_VERSION=!OPENCODE_VERSION:v=!
+
+set OPENCODE_BASE=https://github.com/sst/opencode/releases/download/v!OPENCODE_VERSION!
+set OPENCODE_URL=!OPENCODE_BASE!/opencode-windows-%ARCH%.exe
+set CHECKSUM_URL=!OPENCODE_BASE!/checksums.txt
+
+if exist "%BIN_DIR%\opencode.exe" (
+    echo [OK] OpenCode binary already exists
+    echo [%date% %time%] OpenCode binary exists, skipping download >> "%LOG_FILE%"
+    goto :opencode_done
+)
+
+echo [INFO] Downloading OpenCode v!OPENCODE_VERSION!...
+if "!DOWNLOAD_CMD!"=="curl" (
+    curl -L -o "%BIN_DIR%\opencode.exe.tmp" "!OPENCODE_URL!"
+) else (
+    powershell -NoProfile -Command "Invoke-WebRequest -Uri '!OPENCODE_URL!' -OutFile '%BIN_DIR%\opencode.exe.tmp'"
+)
+
+if exist "%BIN_DIR%\opencode.exe.tmp" (
+    move /Y "%BIN_DIR%\opencode.exe.tmp" "%BIN_DIR%\opencode.exe" >nul
+    echo [OK] OpenCode downloaded
+) else (
+    echo [WARN] OpenCode download failed - using Binary-Free Mode instead
+    set SKIP_OPENCODE=1
+)
+goto :opencode_done
+
+:skip_opencode_download
+set SKIP_OPENCODE=1
+echo [INFO] Skipping OpenCode binary - using Binary-Free Mode
+echo [%date% %time%] Using Binary-Free Mode >> "%LOG_FILE%"
+
+:opencode_done
+
+echo.
+echo [STEP 6/8] Building UI assets
+if exist "%SCRIPT_DIR%\packages\ui\dist\index.html" (
+    echo [OK] UI build already exists
+) else (
+    echo [INFO] Building UI assets...
+    pushd packages\ui
+    call npm run build
+    if !ERRORLEVEL! neq 0 (
+        echo [ERROR] UI build failed!
+        popd
+        set /a ERRORS+=1
+        goto :SUMMARY
+    )
+    popd
+    echo [OK] UI assets built successfully
+)
+
+echo.
+echo [STEP 7/8] Post-install health check
+set HEALTH_ERRORS=0
+
+if not exist "%SCRIPT_DIR%\package.json" set /a HEALTH_ERRORS+=1
+if not exist "%SCRIPT_DIR%\packages\ui" set /a HEALTH_ERRORS+=1
+if not exist "%SCRIPT_DIR%\packages\server" set /a HEALTH_ERRORS+=1
+if not exist "%SCRIPT_DIR%\packages\ui\dist\index.html" set /a HEALTH_ERRORS+=1
+
+if !HEALTH_ERRORS! equ 0 (
+    echo [OK] Health checks passed
+) else (
+    echo [ERROR] Health checks failed: !HEALTH_ERRORS! issues
+    set /a ERRORS+=!HEALTH_ERRORS!
+)
+
+echo.
+echo [STEP 8/8] Installation Summary
+echo.
+echo   Install Dir: %TARGET_DIR%
+echo   Architecture: %ARCH%
+echo   Node.js: %NODE_VERSION%
+echo   npm: %NPM_VERSION%
+if !SKIP_OPENCODE! equ 1 (
+    echo   Mode: Binary-Free Mode
+) else (
+    echo   Mode: Full Mode with OpenCode binary
+)
+echo   Errors: !ERRORS!
+echo   Warnings: !WARNINGS!
+echo   Log File: %LOG_FILE%
+echo.
+
+:SUMMARY
+if !ERRORS! gtr 0 (
+    echo [RESULT] Installation completed with errors.
+    echo Review the log: %LOG_FILE%
+    echo.
+    echo If Node.js was just installed, open a new terminal and run this installer again.
+) else (
+    echo [RESULT] Installation completed successfully.
+    echo Run Launch-Windows.bat to start the application.
+    echo.
+    if !SKIP_OPENCODE! equ 1 (
+        echo NOTE: Running in Binary-Free Mode.
+        echo       Free models: GPT-5 Nano, Grok Code, GLM-4.7, etc.
+        echo       You can also authenticate with Qwen for additional models.
+    )
+)
+
+echo.
+echo Press any key to exit...
+pause >nul
+exit /b !ERRORS!