fix: Improve Windows build scripts to properly execute electron-builder

- build-client.bat: Use node_modules\.bin\electron-builder.cmd directly
- build-all.ps1: Use direct path to electron-builder instead of npm run
- setup-backend.bat: Add UTF-8 support and use python -m pip

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

scripts/build-all.ps1

@@ -217,10 +217,20 @@ function Build-Electron {
             exit 1
         }
 
-        # 安裝依賴
-        if (-not (Test-Path "node_modules")) {
+        # 總是執行 npm install 確保依賴完整
         Write-Host "  安裝 npm 依賴..." -ForegroundColor Gray
         npm install
+        if ($LASTEXITCODE -ne 0) {
+            Write-Err "npm install 失敗"
+            exit 1
+        }
+
+        # 確認 electron-builder 已安裝
+        $electronBuilderPath = Join-Path $ClientDir "node_modules\.bin\electron-builder.cmd"
+        if (-not (Test-Path $electronBuilderPath)) {
+            Write-Err "electron-builder 未安裝"
+            Write-Warn "請確認 package.json 中的 devDependencies 包含 electron-builder"
+            exit 1
         }
 
         # 建立 .env 如果不存在
@@ -230,12 +240,19 @@ function Build-Electron {
         }
 
         Write-Host "  執行 electron-builder..." -ForegroundColor Gray
-        npm run build -- --win
+
+        # 直接執行 node_modules 中的 electron-builder
+        & $electronBuilderPath --win
+
+        if ($LASTEXITCODE -ne 0) {
+            Write-Err "electron-builder 執行失敗"
+            exit 1
+        }
 
         if (Test-Path "dist\*.exe") {
             Write-OK "Electron 打包完成"
         } else {
-            Write-Err "Electron 打包失敗"
+            Write-Err "Electron 打包失敗 - dist 目錄中找不到 exe 檔案"
             exit 1
         }
     }

scripts/build-client.bat

@@ -1,4 +1,5 @@
 @echo off
+chcp 65001 >nul
 REM Meeting Assistant Client - Windows 打包腳本
 REM 將 Electron 應用與 Python Sidecar 打包成免安裝 exe
 
@@ -99,6 +100,7 @@ if exist "%BUILD_DIR%" rmdir /s /q "%BUILD_DIR%"
 if exist "%CLIENT_DIR%\dist" rmdir /s /q "%CLIENT_DIR%\dist"
 if exist "%SIDECAR_DIR%\dist" rmdir /s /q "%SIDECAR_DIR%\dist"
 if exist "%SIDECAR_DIR%\build" rmdir /s /q "%SIDECAR_DIR%\build"
+if exist "%SIDECAR_DIR%\venv" rmdir /s /q "%SIDECAR_DIR%\venv"
 if exist "%SIDECAR_DIR%\*.spec" del /q "%SIDECAR_DIR%\*.spec"
 
 echo %GREEN%[OK]%NC% 建置目錄已清理
@@ -116,11 +118,11 @@ if not exist "venv" (
 
 echo %BLUE%[INFO]%NC% 安裝 Sidecar 依賴...
 call venv\Scripts\activate.bat
-pip install --upgrade pip -q
-pip install -r requirements.txt -q
+python -m pip install --upgrade pip -q
+python -m pip install -r requirements.txt -q
 
 echo %BLUE%[INFO]%NC% 安裝 PyInstaller...
-pip install pyinstaller -q
+python -m pip install pyinstaller -q
 
 echo %GREEN%[OK]%NC% Sidecar 建置環境就緒
 goto :eof
@@ -173,11 +175,19 @@ echo %BLUE%[STEP]%NC% 設置前端建置環境...
 
 cd /d "%CLIENT_DIR%"
 
-if not exist "node_modules" (
+REM 總是執行 npm install 確保依賴完整
 echo %BLUE%[INFO]%NC% 安裝前端依賴...
 call npm install
-) else (
-    echo %BLUE%[INFO]%NC% 前端依賴已安裝
+if errorlevel 1 (
+    echo %RED%[ERROR]%NC% npm install 失敗
+    exit /b 1
+)
+
+REM 確認 electron-builder 已安裝
+if not exist "node_modules\electron-builder" (
+    echo %RED%[ERROR]%NC% electron-builder 未安裝
+    echo %BLUE%[INFO]%NC% 請檢查 package.json 中的 devDependencies
+    exit /b 1
 )
 
 if not exist ".env" (
@@ -198,13 +208,23 @@ cd /d "%CLIENT_DIR%"
 echo %BLUE%[INFO]%NC% 目標平台: Windows (Portable)
 echo %BLUE%[INFO]%NC% 執行 electron-builder...
 
-call npm run build -- --win
+REM 使用 npm run build 或直接執行 node_modules 中的 electron-builder
+if exist "node_modules\.bin\electron-builder.cmd" (
+    call "node_modules\.bin\electron-builder.cmd" --win
+) else (
+    call npx electron-builder --win
+)
+
+if errorlevel 1 (
+    echo %RED%[ERROR]%NC% electron-builder 執行失敗
+    exit /b 1
+)
 
 if exist "dist" (
     echo %GREEN%[OK]%NC% Electron 打包完成
     echo %BLUE%[INFO]%NC% 輸出目錄: %CLIENT_DIR%\dist
 ) else (
-    echo %RED%[ERROR]%NC% Electron 打包失敗
+    echo %RED%[ERROR]%NC% Electron 打包失敗 - dist 目錄不存在
     exit /b 1
 )
 goto :eof

scripts/setup-backend.bat

@@ -1,4 +1,5 @@
 @echo off
+chcp 65001 >nul
 REM Meeting Assistant Backend - Windows 一鍵設置與啟動腳本
 REM 自動安裝依賴、設置環境並啟動後端服務
 
@@ -92,8 +93,8 @@ if not exist "venv" (
 
 echo %BLUE%[INFO]%NC% 安裝後端依賴...
 call venv\Scripts\activate.bat
-pip install --upgrade pip -q
-pip install -r requirements.txt -q
+python -m pip install --upgrade pip -q
+python -m pip install -r requirements.txt -q
 echo %GREEN%[OK]%NC% 後端依賴安裝完成
 goto :eof
 
@@ -112,8 +113,8 @@ if not exist "venv" (
 
 echo %BLUE%[INFO]%NC% 安裝 Sidecar 依賴 (這可能需要幾分鐘)...
 call venv\Scripts\activate.bat
-pip install --upgrade pip -q
-pip install -r requirements.txt -q
+python -m pip install --upgrade pip -q
+python -m pip install -r requirements.txt -q
 echo %GREEN%[OK]%NC% Sidecar 依賴安裝完成
 goto :eof