fix: 修复新建项目无响应问题

- 替换 prompt() 为 InputDialog Vue 模态组件
- 替换 alert()/confirm() 为 Electron showMessageBox IPC
- 添加 dialog:showMessage / dialog:showConfirm IPC 通道

site/index.html

@@ -344,23 +344,25 @@
         <div class="platform-icon">🪟</div>
         <h4>Windows</h4>
         <p class="version">v1.0.0 · x64</p>
-        <a href="../release/win-unpacked/Web2App.exe" class="btn btn-primary" download>
+        <a href="https://web2app.qmiweb.com/resource/Web2App%20Setup%201.0.0.exe" class="btn btn-primary">
           <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4M7 10l5 5 5-5M12 15V3"/></svg>
-          下载便携版
+          下载安装包
         </a>
-        <div style="margin-top:10px;font-size:13px;color:var(--text-muted);">可执行安装包请通过 <code>npm run electron:build</code> 构建</div>
+        <div style="margin-top:10px;font-size:13px;color:var(--text-muted);">Windows 7+ / x64 · 含安装向导</div>
       </div>
       <div class="platform-card">
         <div class="platform-icon">🍎</div>
         <h4>macOS</h4>
         <p class="version">v1.0.0 · Intel / Apple Silicon</p>
         <span class="coming-soon">即将发布</span>
+        <div style="margin-top:8px;font-size:12px;color:var(--text-muted);">可通过源码自行构建</div>
       </div>
       <div class="platform-card">
         <div class="platform-icon">🐧</div>
         <h4>Linux</h4>
-        <p class="version">v1.0.0 · .AppImage</p>
+        <p class="version">v1.0.0 · .AppImage / .deb</p>
         <span class="coming-soon">即将发布</span>
+        <div style="margin-top:8px;font-size:12px;color:var(--text-muted);">可通过源码自行构建</div>
       </div>
     </div>
   </div>
@@ -409,7 +411,7 @@
 <footer>
   <div class="container">
     <span>&copy; 2026 Web2App. MIT License.</span>
-    <a href="https://github.com/anomalyco/WebpageExer" target="_blank">GitHub 仓库</a>
+    <a href="https://git.qmikeji.cn/gmh/Web2App.git" target="_blank">Git 仓库</a>
   </div>
 </footer>