fix: tabBar图标SVG→真实PNG格式，修复4个按钮图标不显示；上传脚本支持命令行参数

scripts/upload-wx.js

@@ -10,11 +10,14 @@ const path = require('path');
     ignores: ['node_modules/**/*'],
   });
 
+  const version = process.argv[2] || '1.0.0';
+  const desc = process.argv[3] || 'default';
+
   console.log('→ 正在上传微信小程序...');
   const uploadResult = await ci.upload({
     project,
-    version: '1.1.2',
-    desc: '统一页面布局+问答预览+暗色主题+tabBar切换',
+    version,
+    desc,
     setting: {
       es6: true,
       es7: true,