ci(workflow): 在Windows构建流程中添加Git到PATH

添加PowerShell步骤以将Git的可执行路径添加到系统PATH环境变量中，确保在Windows环境下可以正常使用git命令

.github/workflows/build-windows.yml

@@ -77,6 +77,24 @@ jobs:
     steps:
     # 新增：引导步骤，下载并设置 Node.js（便携版，无需全局安装）
 
+    - name: 🔧 Add Git to PATH (Windows)
+      if: ${{ runner.os == 'Windows' }}
+      shell: powershell
+      run: |
+        $paths = @(
+          'C:\Program Files\Git\cmd',
+          'C:\Program Files\Git\bin'
+        )
+        foreach ($p in $paths) {
+          if (Test-Path $p) {
+            Add-Content -Path $env:GITHUB_PATH -Value $p
+            Write-Host "✅ Added to PATH: $p"
+          } else {
+            Write-Host "⚠️ Path not found: $p"
+          }
+        }
+        git --version
+
     - name: 📥 Checkout 代码
       uses: actions/checkout@v4
       with: