fix(ci): 修复 macOS 交叉编译和 Windows WiX 构建失败

- 使用 CARGO_CFG_TARGET_ARCH 环境变量检测目标架构，支持交叉编译
- 添加 CARGO_CFG_TARGET_ARCH/OST 的 rerun-if-env-changed
- 在 Windows runner 上显式安装 WiX Toolset 3.14.1

.github/workflows/main.yml

@@ -218,6 +218,12 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
 
+      - name: Install Windows dependencies (WiX)
+        if: matrix.platform == 'windows-latest'
+        run: |
+          choco install wixtoolset --version 3.14.1 --no-progress -y
+          echo "C:\Program Files (x86)\WiX Toolset v3.14\bin" >> $env:GITHUB_PATH
+
       - run: pnpm install --frozen-lockfile
 
       - name: Build Tauri app